Grunge/Urban Vector Font & Art

Does anyone know where I might purchase Grunge type Vector Art and Fonts to use on t-shirts that folks design then purchase using my online designer? It seems the Vector sites I have found lately only allow to be printed on shirts I make and then sell. I would like others to be able to use in it in a designer and sold. The vector artwork would be saved in Flash (SWF) files so can only be used from my site and not duplicated or re-sold. I guess what I would need to do is to find and purchased exclusive rights (buy it/own it) the fonts artwork?

Thanks for any help as I'm a newbie and getting setup!