Not a REAL electronics project, but still kind of funny (to a select few people). Inspired by "Magnetic Poetry" I made my own set of magnetic logic gates and other various components which I now have plastered all over my fridge, and to a letter extent, my car.
I created a schematic sheet in Altium Designer, modified it slightly, and then printed out the symbols I wanted onto letter-size magnetic sheets. If somebody turns this into a real product please tell me - I'll be first in line to buy a set :-) Enjoy!
My Fridge - Plastered with Logic Gates and other Discrete Components