diff --git a/CHANGELOG.md b/CHANGELOG.md
index b518e6d..80186fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+* [PR-6](https://github.com/itk-dev/itk-project-database/pull/6)
+  Mark udfyldningsgrad fields with a star that flies into a progress trophy
 * [PR-5](https://github.com/itk-dev/itk-project-database/pull/5)
   Improve initiative list, search and filters using partial page rendering
 * [PR-4](https://github.com/itk-dev/itk-project-database/pull/4)
diff --git a/assets/controllers/form_progress_controller.js b/assets/controllers/form_progress_controller.js
index 0b4a94c..165b2df 100644
--- a/assets/controllers/form_progress_controller.js
+++ b/assets/controllers/form_progress_controller.js
@@ -4,17 +4,26 @@ import { Controller } from "@hotwired/stimulus";
  * Drives the initiative form's completion bar. Completion = filled / total over a
  * fixed set of fields (the `fields` value, shared with the server so the bar and
  * the list percentage always agree), grouped by field key so a multi-input field
- * (links, funding) counts once. The bar's width and hue (red -> green) track the
- * ratio. Used on both the new and edit forms.
+ * (links, funding) counts once. Used on both the new and edit forms.
+ *
+ * Stars: each starred (completion) field shows a star by its label. Filling the
+ * field makes that star fly into the "trophy" star at the end of the bar; clearing
+ * the field sends a star back from the trophy to the label. The bar and the trophy
+ * advance only once a forward star lands on the trophy, and deduct the moment a
+ * star leaves the trophy on the way back — so the motion and the numbers stay in
+ * sync. `shownCount` is what the bar currently shows, which trails the true field
+ * state during flight.
  */
 export default class extends Controller {
-    static targets = ["fill", "label"];
+    static targets = ["fill", "label", "star"];
 
     static values = {
         fields: { type: Array, default: [] },
     };
 
     connect() {
+        this.filledKeys = null;
+        this.shownCount = 0;
         this.recompute();
     }
 
@@ -25,18 +34,113 @@ export default class extends Controller {
 
         const wanted = new Set(this.fieldsValue);
         const filled = new Set();
+        const starForKey = new Map();
 
         for (const el of this.element.querySelectorAll(
             "input, select, textarea",
         )) {
             const key = this.fieldKey(el);
-            if (key && wanted.has(key) && this.isFilled(el)) {
+            if (!key || !wanted.has(key)) {
+                continue;
+            }
+            if (!starForKey.has(key)) {
+                starForKey.set(
+                    key,
+                    el
+                        .closest(".form-row")
+                        ?.querySelector(".completion-star") ?? null,
+                );
+            }
+            if (this.isFilled(el)) {
                 filled.add(key);
             }
         }
 
-        const total = wanted.size;
-        const ratio = total ? filled.size / total : 0;
+        this.total = wanted.size;
+
+        // First pass (page load): reflect the current state with no animation.
+        if (!this.filledKeys) {
+            this.shownCount = filled.size;
+            this.render();
+            for (const [key, star] of starForKey) {
+                star?.classList.toggle(
+                    "completion-star--gone",
+                    filled.has(key),
+                );
+            }
+            this.filledKeys = filled;
+
+            return;
+        }
+
+        for (const [key, star] of starForKey) {
+            const isFilled = filled.has(key);
+            const wasFilled = this.filledKeys.has(key);
+            if (isFilled && !wasFilled) {
+                this.sendStarToTrophy(star);
+            } else if (!isFilled && wasFilled) {
+                this.sendStarToLabel(star);
+            }
+        }
+
+        this.filledKeys = filled;
+    }
+
+    // Field filled: the label star flies up; the bar/trophy advance only on arrival.
+    sendStarToTrophy(star) {
+        if (!this.hasStarTarget || !star) {
+            return;
+        }
+
+        const fromRect = this.realRect(star);
+        star.classList.add("completion-star--gone");
+
+        this.flyBetween(
+            fromRect,
+            this.starTarget.getBoundingClientRect(),
+            () => {
+                this.shownCount += 1;
+                this.render();
+                this.popTrophy();
+            },
+            38,
+        );
+    }
+
+    // Field cleared: deduct from the trophy now, then a star flies back to the label.
+    sendStarToLabel(star) {
+        if (!this.hasStarTarget || !star) {
+            return;
+        }
+
+        this.shownCount -= 1;
+        this.render();
+
+        const fromRect = this.starTarget.getBoundingClientRect();
+        this.flyBetween(fromRect, this.realRect(star), () => {
+            star.classList.remove("completion-star--gone");
+        });
+    }
+
+    // The label star's real on-screen box, even while collapsed (--gone), so a
+    // returning star lands exactly where the star will sit, not at the text end.
+    realRect(star) {
+        const gone = star.classList.contains("completion-star--gone");
+        if (gone) {
+            star.classList.remove("completion-star--gone");
+        }
+        const rect = star.getBoundingClientRect();
+        if (gone) {
+            star.classList.add("completion-star--gone");
+        }
+
+        return rect;
+    }
+
+    render() {
+        const total = this.total || 0;
+        const count = Math.max(0, Math.min(this.shownCount, total));
+        const ratio = total ? count / total : 0;
         const percent = Math.round(ratio * 100);
 
         this.fillTarget.style.width = `${percent}%`;
@@ -49,6 +153,119 @@ export default class extends Controller {
         if (this.hasLabelTarget) {
             this.labelTarget.textContent = `${percent}%`;
         }
+
+        this.updateTrophy(ratio);
+    }
+
+    updateTrophy(ratio) {
+        if (!this.hasStarTarget) {
+            return;
+        }
+
+        // Only the size tracks progress; colour stays gold like the label stars.
+        this.starTarget.style.fontSize = `${(1 + ratio * 0.85).toFixed(2)}em`;
+    }
+
+    // `lift` (px) gives the forward flight a slow celebratory rise before it
+    // launches fast into the trophy; 0 keeps the plain arc used on the way back.
+    flyBetween(fromRect, toRect, onArrive, lift = 0) {
+        const startX = fromRect.left + fromRect.width / 2;
+        const startY = fromRect.top + fromRect.height / 2;
+        const dx = toRect.left + toRect.width / 2 - startX;
+        const dy = toRect.top + toRect.height / 2 - startY;
+
+        if (this.prefersReducedMotion) {
+            onArrive();
+
+            return;
+        }
+
+        const star = document.createElement("span");
+        star.className = "flying-star";
+        star.textContent = "★";
+        star.setAttribute("aria-hidden", "true");
+        star.style.left = `${startX}px`;
+        star.style.top = `${startY}px`;
+        document.body.appendChild(star);
+
+        const arrive = {
+            transform: `translate(calc(-50% + ${dx}px), calc(-50% + ${dy}px)) scale(0.85) rotate(360deg)`,
+            opacity: 0,
+        };
+
+        let keyframes;
+        let duration;
+        if (lift > 0) {
+            keyframes = [
+                {
+                    transform: "translate(-50%, -50%) scale(1.3) rotate(0deg)",
+                    opacity: 1,
+                    easing: "cubic-bezier(0.16, 1, 0.3, 1)",
+                },
+                {
+                    transform: `translate(-50%, calc(-50% - ${lift}px)) scale(1.45) rotate(35deg)`,
+                    opacity: 1,
+                    offset: 0.5,
+                    easing: "cubic-bezier(0.7, 0, 0.84, 0)",
+                },
+                {
+                    transform: `translate(calc(-50% + ${dx * 0.94}px), calc(-50% + ${dy * 0.94}px)) scale(1) rotate(345deg)`,
+                    opacity: 1,
+                    offset: 0.94,
+                },
+                arrive,
+            ];
+            duration = 1000;
+        } else {
+            const apex = dy < 0 ? -14 : -8;
+            keyframes = [
+                {
+                    transform: "translate(-50%, -50%) scale(1.3) rotate(0deg)",
+                    opacity: 1,
+                },
+                {
+                    transform: `translate(calc(-50% + ${dx * 0.5}px), calc(-50% + ${dy * 0.5 + apex}px)) scale(1.15) rotate(180deg)`,
+                    opacity: 1,
+                    offset: 0.5,
+                },
+                {
+                    transform: `translate(calc(-50% + ${dx * 0.92}px), calc(-50% + ${dy * 0.92}px)) scale(1) rotate(330deg)`,
+                    opacity: 1,
+                    offset: 0.9,
+                },
+                arrive,
+            ];
+            duration = 760;
+        }
+
+        const flight = star.animate(keyframes, {
+            duration,
+            easing: "cubic-bezier(0.3, 0, 0.5, 1)",
+        });
+
+        flight.onfinish = () => {
+            star.remove();
+            onArrive();
+        };
+    }
+
+    popTrophy() {
+        if (!this.hasStarTarget || this.prefersReducedMotion) {
+            return;
+        }
+
+        this.starTarget.animate(
+            [
+                { transform: "scale(1)" },
+                { transform: "scale(1.55)" },
+                { transform: "scale(1)" },
+            ],
+            { duration: 360, easing: "ease-out" },
+        );
+    }
+
+    get prefersReducedMotion() {
+        return window.matchMedia("(prefers-reduced-motion: reduce)").matches;
     }
 
     // "initiative[links][0]" -> "links", "initiative[funding][]" -> "funding".
diff --git a/assets/styles/app.css b/assets/styles/app.css
index 894cf14..466ef33 100644
--- a/assets/styles/app.css
+++ b/assets/styles/app.css
@@ -1056,6 +1056,25 @@ h3 {
     color: var(--itk-slate-700);
 }
 
+.completion-star {
+    display: inline-block;
+    margin-left: var(--itk-space-1);
+    color: gold;
+    font-size: 1.1em;
+    line-height: 1;
+    vertical-align: text-top;
+    -webkit-text-stroke: 0.75px #000;
+    paint-order: stroke fill;
+    cursor: help;
+}
+
+.completion-star--gone {
+    width: 0;
+    margin-left: 0;
+    opacity: 0;
+    overflow: hidden;
+}
+
 .form-row .help-text,
 .form-row .form-help {
     font-size: var(--itk-text-xs);
@@ -1482,6 +1501,31 @@ textarea {
     font-variant-numeric: tabular-nums;
 }
 
+.form-progress__star {
+    flex: none;
+    display: inline-block;
+    position: relative;
+    top: -0.1em;
+    margin-left: calc(-1 * var(--itk-space-2));
+    font-size: var(--itk-text-md);
+    line-height: 1;
+    color: gold;
+    -webkit-text-stroke: 0.75px #000;
+    paint-order: stroke fill;
+    transition: font-size 240ms ease;
+}
+
+.flying-star {
+    position: fixed;
+    z-index: 1000;
+    pointer-events: none;
+    color: gold;
+    font-size: var(--itk-text-lg);
+    line-height: 1;
+    -webkit-text-stroke: 0.75px #000;
+    paint-order: stroke fill;
+}
+
 .completion {
     display: flex;
     align-items: center;
diff --git a/src/Form/InitiativeType.php b/src/Form/InitiativeType.php
index 85b2753..d48a6f5 100644
--- a/src/Form/InitiativeType.php
+++ b/src/Form/InitiativeType.php
@@ -26,6 +26,8 @@
 use Symfony\Component\Form\FormBuilderInterface;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Component\Form\FormEvents;
+use Symfony\Component\Form\FormInterface;
+use Symfony\Component\Form\FormView;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\Validator\Constraints as Assert;
 
@@ -200,6 +202,19 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
         });
     }
 
+    /**
+     * Flag the fields that count towards {@see Initiative::getCompletionPercentage()}
+     * so the form theme can mark them. Keeps the list in one place.
+     */
+    public function finishView(FormView $view, FormInterface $form, array $options): void
+    {
+        foreach (Initiative::COMPLETION_FIELDS as $field) {
+            if (isset($view[$field])) {
+                $view[$field]->vars['completion_field'] = true;
+            }
+        }
+    }
+
     public function configureOptions(OptionsResolver $resolver): void
     {
         $resolver->setDefaults([
diff --git a/templates/form/fields.html.twig b/templates/form/fields.html.twig
index 7585252..83c0b77 100644
--- a/templates/form/fields.html.twig
+++ b/templates/form/fields.html.twig
@@ -1,5 +1,12 @@
 {% use 'form_div_layout.html.twig' %}
 
+{% block form_label_content %}
+    {{- parent() -}}
+    {%- if completion_field|default(false) -%}
+        <span class="completion-star" aria-hidden="true" title="{{ 'initiative.completion_field_hint'|trans }}">★</span>
+    {%- endif -%}
+{% endblock %}
+
 {% block form_row %}
     {% set row_class = 'form-row' %}
     <div class="{{ row_class }}">
diff --git a/templates/initiative/_form.html.twig b/templates/initiative/_form.html.twig
index ef65768..ee58980 100644
--- a/templates/initiative/_form.html.twig
+++ b/templates/initiative/_form.html.twig
@@ -33,6 +33,7 @@
             <div class="form-progress__track" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0" aria-label="{{ 'autosave.completion'|trans }}">
                 <div class="form-progress__fill" data-form-progress-target="fill"></div>
             </div>
+            <span class="form-progress__star" data-form-progress-target="star" aria-hidden="true">★</span>
             <span class="form-progress__label" data-form-progress-target="label">0%</span>
         </div>
     </div>
diff --git a/translations/messages.da.yaml b/translations/messages.da.yaml
index a16c06a..7b8bfe1 100644
--- a/translations/messages.da.yaml
+++ b/translations/messages.da.yaml
@@ -119,6 +119,7 @@ initiative:
     new_contacts: Opret nye kontaktpersoner
     author: Udfyldt af
     terms_help: Adskil flere værdier med komma.
+    completion_field_hint: Dette felt tæller med i udfyldningsgraden.
     images: Billeder
     attachments: Filer
     image_file: Billedfil
diff --git a/translations/messages.en.yaml b/translations/messages.en.yaml
index d5070d7..7781270 100644
--- a/translations/messages.en.yaml
+++ b/translations/messages.en.yaml
@@ -119,6 +119,7 @@ initiative:
     new_contacts: Add new contacts
     author: Filled out by
     terms_help: Separate multiple values with commas.
+    completion_field_hint: This field counts towards the completion rate.
     images: Images
     attachments: Files
     image_file: Image file