For those of you unfamiliar with the art of Origami, these are probably the models on this webside with the highest skill/price ratio :) They cost you nothing except time and a few sheets of paper...
Aaaaand, this piece of art is completely biodegradable :)
Here's a little bit of complex paper art for you to have some fun with. The assembly is very similar to Thomas Hulls 5 Intersecting Tetrahedra (there's an instructable for it), I would recommend folding that first if you haven't yet.
The original diagrams are in the OrigamiUSA issue of 2002 ( I think).
This is a complex rendition of a Great Stellated Dodecahedron, with 60 pieces of paper folded into 20 triangles comprising 5 tetrahedra.
Oh and if I win the Epilog laser cutter with this instructable, I will use it to laser a labyrinth into a medical textbook of mine and put a ball bearing inside the book that one can roll around like a maze... I've been wanting to do this for a while, but I haven't gotten the opportunity yet, so if you're feeling nice then vote for me :) I might even post an instructable about it if I get it done...
What you will need:
10 squares of paper
CDO (Kinda like OCD, except the letters are in alphabetical order. As they should be...)
Ok lets get started!