Extreme Papercraft: Frabjous

Created by Professor George W. Hart of SUNY Stony Brook, this is a papercraft work of art/puzzle that’s guaranteed to blow your mind. It’s called Frabjous and it’s made of 30 pieces of cardboard interwoven together. George was nice enough to make a PDF file for the rest of us who want to make one and solve it. Putting it together will be a challenge and one only the most bored of people will undertake.

Link