T-Shirt ideas, please

My dad just got himself one of those machines that melt prints onto t-shirts, and I want me some ideas what to put on them.

Currently, I’ve got this done:
http://upl.gizgiz.nu/files/Fists_thumb.jpg

which looks a bit shabby, but it’s a first try-thing so I just grabbed one of the ideas I had and threw it together. My second design is of an Abel-BnB put into text. But I need to get myself more colours to work with.

Any thoughts on what to put on a shirt?

Oh dude my grandpa dose stuff like this, if you need some advice just ask me. Anyway I think that there should be some shirts that say stuff like: SHORYUKEN, HEAVEN OR HELL LETS ROCK!!!, Can Any Body Stop This Fighting Machine?, COMBO BREAKER!!!, and FINISH HIM!!!.

what… have I done?

… Eh?