I think these are called rotating ring flexagons... it seems an appropriate name, anyways. I made one out of paper a long time ago and thought it was really fun to play with, but I was always worried about breaking it by using it too much. I thought it would be interesting to make a sort of more organic and cuddly one out of fabric, and see if the rotating mechanism would translate well into that medium.
It came out pretty well! If you want to make one yourself, you will need:
- Four types of fabric
- Fabric scissors
- Sewing machine
- Sewing supplies (needle, thread, pins, marking pen)