Dreikopftile

If you see lots of fidget spinners on the fotos: Congratulations -- maeeep -- wrong!

The objects here are simple wooden toys cut from 3mm plywood with a lasercutter. (Yeah, the center hole is only there to fool those fidget spinner addicts.) The pieces tile the plane and can be cut with very little waste. The pieces connect to each other in a zig-zag way, and 8 pieces form a ring. This is not mathematically perfect, but as it is wood, it easily bends inwards to close the ring. Or 10 pieces fo