I remember people asking me at the WC whether our (Czech and Slovak) t-shirts are available for exchange or for sale. I had only a single one, and did not want to lose it, but asked the PR officer whether she could get more of them made. She told it is possible. Unfortunately I forgot who asked me for the t-shirts, so if you are interested please let me know what size and quantity you want. I do not have a photo right now at the hand, but will add it here later. If you have any own t-shirts for trading, do not hesitate to post a photo of it here too.