place holder 

T-Shirts:

Currently playing around with free cafepress account here: http://www.cafepress.com/votereport

Voting:

One idea is to use Reddit to allow people to vote 'up' or 'down' on t-shirt designs. I have created a Reddit community to demonstrate this: http://www.reddit.com/r/VoteReport/

Only approved contributors can add new designs, but anyone can vote.