diff --git a/2024/sketch_2024_12_06/sketch_2024_12_06.gif b/2024/sketch_2024_12_06/sketch_2024_12_06.gif
new file mode 100644
index 00000000..9e1f20f6
Binary files /dev/null and b/2024/sketch_2024_12_06/sketch_2024_12_06.gif differ
diff --git a/2024/sketch_2024_12_06/sketch_2024_12_06.py b/2024/sketch_2024_12_06/sketch_2024_12_06.py
new file mode 100644
index 00000000..3f5a946d
--- /dev/null
+++ b/2024/sketch_2024_12_06/sketch_2024_12_06.py
@@ -0,0 +1,27 @@
+import numpy as np
+import py5
+from skimage import measure
+
+# from https://scikit-image.org/docs/stable/auto_examples/edges/plot_contours.html
+x, y = np.ogrid[-np.pi : np.pi : 400j, -np.pi : np.pi : 400j]
+r = np.sin(np.exp(np.sin(x) ** 3 + np.cos(y) ** 2))
+r = r.T
+r *= 255
+
+def setup():
+    global img
+    py5.size(400, 400)
+    py5.color_mode(py5.HSB)
+    img = py5.create_image_from_numpy(r.T, 'L')
+
+def draw():
+    py5.image(img, 0, 0)
+    t = py5.mouse_x / py5.width * 255
+    contours = measure.find_contours(r, t)
+
+    for i, contour in enumerate(contours):
+        py5.fill(i * 32, 255, 255, 150)
+        with py5.begin_closed_shape():
+            py5.vertices(contour)
+
+py5.run_sketch(block=False)
\ No newline at end of file
diff --git a/docs/README.md b/docs/README.md
index 83c31906..1552967e 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -30,6 +30,16 @@ Here are listed some of the tools I have been using more recently:
 2024 \| [<b>2023</b>](2023.md) \| [<b>2022</b>](2022.md) \| [<b>2021</b>](2021.md) \| [<b>2020</b>](2020.md) \| [<b>2019</b>](2019.md) \| [<b>2018</b>](2018.md)
 
 
+---
+
+### sketch_2024_12_06
+
+![sketch_2024_12_06](https://raw.githubusercontent.com/villares/sketch-a-day/main/2024/sketch_2024_12_06/sketch_2024_12_06.gif)
+
+[sketch_2024_12_06](https://github.com/villares/sketch-a-day/tree/main/2024/sketch_2024_12_06) [[py5](https://py5coding.org/)]
+
+
+
 ---
 
 ### sketch_2024_12_05