Haha, that'd be great!
It's actually really easy and really cheap, here's what I spent:
$3 - Package of 3 white shirts
$8 - 2 paint things, which I used maybe 1/4 of
--
$11
I already had good cheap paint brush, so tack on maybe $2 for those.
And best of all, it really looks good! Even just tracing looked good, using a stencil would be even better. But I wanted the half-assed look.
My friend wants me to make him a "Who Farted?" t-shirt (like Booger from Revenge of the Nerds always wore)