I know this is an old thread, but just so you guys know I had no luck with threadless! Didn't even make it past the mods. (too many colors and they didn't like the text on the "balls" one, which I didn't get since that's pretty much what makes it interesting... they were rather snappy about it )
Anyhow I just ended up posting them on cafepress for the club members to buy directly so they wouldn't have to agree on a color or design.
I forgot to post here until I realized non-members (aka people from Australia, California, Georgia, etc!) were ordering them!! I forgot people can search and buy them!! :-)
Then I remembered some people here were interested in the shirts, so the link is below if you guys still want it. Thanks for your kind words!