It took me almost 5 years, but finally I came through and got a designer to make me a phun.org shirt:
What do you think about it?
On the other hand I want to ask you creative guys here, to make our own t-shirt design. I plan to get 3 different designs printed. So if you're interested do a creative design and post it in this thread. Afterwards we're going to have a poll and print the 3 most popular designs. You'll be able to order them for around 15 bucks I guess.
Only rule: Do not use more than 3 colors. That's a technical limitation by the printing shop.