Ideas for t-shirt e-shop

[W84me]

Hello all!
First of all sorry for my english...
I am currently developing a t-shirt selling site for a friend of mine . The site targets to teenagers mostly. The problem is i cant think how to design it...is like my mind is stuck. I ve made some grunge designs but i dont feel that are propriate a site like this. Can anyone suggest a style i should follow for the design of this site?:ear:

[hl]

simplicity, oh your sweet sweet beauty.

basically go with smooth, not grunge... smooth as in curves, a couple of drop shadows... just make it look, well clean.