Is someone doing a bitcoin T-shirt?
I already did something much like this but the guy wanted a separate slogan on the back as well, which added like $3-4 to the price. My other project is still occupying most of my time, but I will try to put another version up for you guys later today.
What I did for him was a grey American Apparel, but there are other color or material options. The non-American Apparel tshirts are a little cheaper and have more color variety. I can do stuff like mugs, women's colors, kid's clothing. Tshirts I can sell on demand, I just don't have the time to manually add all of the colors/styles possible or work on fresh designs now. Best if you can join #bitcoin-otc and msg me (prax), or give specifics on the color/design/slogan you want. Easiest would be something like the picture posted ITT.
Stickers I looked at prices for 4x4" and I think I would have to charge $4-5 shipped. I can't really do the quality/clear vinyl in single orders or take on the risk of buying a batch of them without preorders right now. If there is some interest I may do a small run of them.