What's your t-shirt?

So Paul launched a new meme about T-shirts... today my mind won't set on work (in the evening I should have a hot photo session) and I can't resist, must join the fray:

For those who remember, the T-shirt is bought at in Brussels at this year's FOSDEM (sorry, I don't wear the wig too, is way to hot in Bucharest these days).

Now... what's your T-shirt? Quote from Paul:

"Upload a photo of you wearing your t-shirt, let's see what type of t-shirts people wear...link in my comments or do your own blog post :) hmmm wonder how many comments i'll get from my Fedora buddies ;) "