Tablecloth without a Table
It's pretty fun for a picture, but unless you're right there on the ground like in the main pic below it's not too obvious. Well, maybe it's just not my style, but I'm sure that anyone else here can replicate it if they were interested.
So how about it? Want to take it on? First person who does an Instructable about this will get... something. A custom patch and maybe something else.
Link via bbgadgets