Actually not as uncommon as one might think. I know several very, very attractive female computer geeks, of which one is my girlfriend.
For everyone who doesn't have a hot geek girlfriend i have a proposal in my signature.
However, to get back on topic, would a site that sells such an outfit be the best way to get women on board, especially with so few mainstream-friendly sites currently available? All it would do is cash in on the sleazy reputation that some would like to portray bitcoin as having.
Sleazy reputation? I'm working on it!
You could always get a Bitcoin tattoo. I'm sure we could get that bounty pretty quick.
That's already been done, search for "worlds first bitcoin tattoo".
ONTOPIC:
Ungeekify the usage of Bitcoins or it will never happen.