I sawhttp://www.thinkgeek.com/product/eea7/ and was inspired to make my own, for my husband.
I didn't make any plans or buy any materials, I just.. went to town with it lol.
It didn't turn out too bad! However the paper kinda got messed up in the process of adding the top/bottom. My husband loved it though!
Turned on, total darkness:
Bottom: (kinda sloppy.. not meant to be looked at lol)