Not to plug myself, but I designed a shirt last year for our college Bemani Club. Anyone who loves general Bemani games would probably enjoy it. I only now realize that the theme of the shirt is perfect for "Bemani Style".
Select Your Style | Suko's Shirt Shack
Btw, the quality here is way above Cafe Press. It's still not as good as something you'd buy in-store, but it's better than the iron-on CafePress stuff I remember getting back in 2002. And no, the image doesn't come out blurry on the shirt (despite what the "enlarged" design image shows).