Fazit: Man kann aus ALLEM einen Kuchen machen!
This cake is very special, so I know not whether you can see everything on the cake. Left rear is a coil which I made out of caramel (at least I've tried it). Right are two light bulbs (from cake-pop-mass), the lower lights. Bottom left is a resistor. Unfortunately, not everything is the same of the proportions, but I hope you can see it anyway. Definitely you wonder now how do I get the idea to bake such a cake. Quite simply, we made a little barbecue in our physics class. I offered to bring a cake and just as self-induction is our theme I came up with this idea.
(I hope you could understand this Text. I now that my English isn´t good)
Conclusion: You can bake a cake on EVERY topic!