Why don't you try to find a sponsor who gives them away ?
Back in my days when I played soccer, Jagermeister was 1 of the best sports sponsors out there.
We always got free jerseys from that company.
Wouldn't know if they are still that generous, but in the US market, maybe even much more so.... e-mail them and give them a try.....(google Jagermeister).
I just facebooked Molson Canadian myself, if they want to particpate in sponsoring my brother and I in an 4 day outdoor concert event.
See what happens, all I was asking for is an awning over the food stands, and a few T-shirts (Give Budweiser, an official sponsor of the event, a little run for it,s money)