Now in Store Form...

Thanks to my buddy, The Payne, I have decided to open a CafePress store for my blog, in order to raise money for college. I've already designed a t-shirt and a button for the store, but I want ideas. What sorts of stuff would you guys be willing to buy? What designs? Any input you have would be marvelous; I really don't want to take out student loans. So, comment freely, and I'll try to incorporate as many of your ideas as possible!
~Sushi