H E X A G O N!
I was organizing a printer-friendly version for myself last night and then I decided to have a go at it. And it worked beautifully! I've already gone through my stash to see what WW and DK yarn I have that might be useful. I'm thinking that I want a rainbow color wheel appearance to it, but after sleeping on it I think I do want to have more than one color in each hexagon.

college blanket success, her I come!!!