diff --git a/experiments/2024-12-09/src/export.rs b/experiments/2024-12-09/src/export.rs
index 40c74236d..4b483c0cd 100644
--- a/experiments/2024-12-09/src/export.rs
+++ b/experiments/2024-12-09/src/export.rs
@@ -13,6 +13,7 @@ pub fn export(shape: &Shape) -> anyhow::Result<()> {
 
     for triangle in shape_triangles {
         let triangle = triangle.vertices.map(|vertex| {
+            let vertex = vertex.get();
             *indices_by_vertex.entry(vertex).or_insert_with(|| {
                 let index = vertices.len();
                 vertices.push(vertex);
diff --git a/experiments/2024-12-09/src/geometry/primitives.rs b/experiments/2024-12-09/src/geometry/primitives.rs
index 6fc4dae66..a41f12a02 100644
--- a/experiments/2024-12-09/src/geometry/primitives.rs
+++ b/experiments/2024-12-09/src/geometry/primitives.rs
@@ -2,7 +2,10 @@ use std::fmt;
 
 use crate::math::Point;
 
-use super::{operation::HandleAny, Operation};
+use super::{
+    operation::{Handle, HandleAny},
+    Operation,
+};
 
 #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
 pub struct Vertex {
@@ -41,13 +44,13 @@ impl Operation for Vertex {
 
 #[derive(Clone, Debug, Eq, Ord, PartialEq, PartialOrd)]
 pub struct Triangle {
-    pub vertices: [Vertex; 3],
+    pub vertices: [Handle<Vertex>; 3],
 }
 
-impl From<[&Vertex; 3]> for Triangle {
-    fn from(vertices: [&Vertex; 3]) -> Self {
+impl From<[&Handle<Vertex>; 3]> for Triangle {
+    fn from(vertices: [&Handle<Vertex>; 3]) -> Self {
         Self {
-            vertices: vertices.map(|vertex| *vertex),
+            vertices: vertices.map(|vertex| vertex.clone()),
         }
     }
 }
@@ -66,9 +69,6 @@ impl Operation for Triangle {
     }
 
     fn children(&self) -> Vec<HandleAny> {
-        self.vertices
-            .iter()
-            .map(|vertex| HandleAny::new(*vertex))
-            .collect()
+        self.vertices.iter().map(|vertex| vertex.to_any()).collect()
     }
 }
diff --git a/experiments/2024-12-09/src/model.rs b/experiments/2024-12-09/src/model.rs
index aa0e06f0e..c3cc9b115 100644
--- a/experiments/2024-12-09/src/model.rs
+++ b/experiments/2024-12-09/src/model.rs
@@ -12,9 +12,6 @@ pub fn model(shape: &mut Shape) {
         .vertex([0.5, 0.5, 0.5])
         .results();
 
-    let [a, b, c, d, e, f, g, h] =
-        [a, b, c, d, e, f, g, h].map(|vertex| vertex.get());
-
     shape
         .triangle([&a, &e, &g]) // left
         .triangle([&a, &g, &c])
diff --git a/experiments/2024-12-09/src/render/geometry.rs b/experiments/2024-12-09/src/render/geometry.rs
index 731dca734..7b837525c 100644
--- a/experiments/2024-12-09/src/render/geometry.rs
+++ b/experiments/2024-12-09/src/render/geometry.rs
@@ -59,9 +59,10 @@ impl Geometry<triangles::Vertex> {
         let mut vertices = Vec::new();
 
         for triangle in &mesh_triangles {
-            let triangle = triangle.vertices.map(|vertex| {
+            let triangle = triangle.vertices.each_ref().map(|vertex| {
                 Vec3::from(
                     vertex
+                        .as_ref()
                         .point
                         .coords
                         .components