Here is a cool website for t-shirts from comics, Star Wars, and other cool things. Check out a few examples below...
http://retail.madengine.com/index2.html (http://retail.madengine.com/index2.html)
(http://retail.madengine.com/media/shirts/StarWars/ss_size1/B0028_VaderSalvage_ss_char.jpg)
(http://retail.madengine.com/media/shirts/Marvel/ss_size1/V5608_StreetLamp_ss_wht.jpg)
(http://retail.madengine.com/media/shirts/Disney/ss_size1/KH014_Slick_ss_blk.jpg)