Celtic Cross Tessellation
![Celtic Cross Tessellation (Michał Kosmulski)](/small/img/models/c/celtic-cross-tessellation-400-eafa0fb1e.jpg)
You can fold this design based on instructions for the Celtic Cross model. Use that model’s CP and just extract the top part (based on 8×8 grid) as a molecule. There are a few creases you need to skip in order to get a flat background.
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