Oxford's Mathematical Bake-off

Oxford had a mathematical bake-off a couple of weeks ago. Here are some pictures of the contestants (well, of what they baked, technically).

Previously, I showed you my student Flora Meng's multilayer-network cakes.

Update: And, of course, there is Puck Rombach's frosting-embedded visualization (i.e., cake) of the Zachary Karate Club network.