Unless you're tailoring the shirts yourself surely it would make more sense to sell you hip and cool designs to bigger T-shirt mongers?
Unless you're just selling cheap things with old witticisms upon them at the market. In which case you'd still probably need screen printing. Anyone can get the heat ones and make them for themselves.
( Hoohah Bibbly-bobbly-bubbly-snibbly wib-wib floppit., Fri 12 Jan 2007, 22:54, archived)

A lot of the designs are on
here
( iainiainiainiain, Fri 12 Jan 2007, 22:55, archived)

They're nice designs.
But as the emphasis is on the design rather than the shirt you could try gauging interest by using something like CafePress.
( Hoohah Bibbly-bobbly-bubbly-snibbly wib-wib floppit., Fri 12 Jan 2007, 22:57, archived)

Yea.
Or spreadshirt. Thank you :)
( iainiainiainiain, Fri 12 Jan 2007, 22:59, archived)