[sbuttgereit]

I've gotten a couple PostgreSQL t-shirts over the years when I volunteered for this or that.

My favorite one is the one for the release of PostgreSQL 8.4. It's simply blue on white and the design is after one of the boxes from the periodic table of the elements: with "Pg" in the middle and (as I recall, it's not in front of me now) and an "atomic weight" of 8.4.

The other was for the release of PostgreSQL 9.0 when replication was introduced. It's a blue shirt with white print. That banner feature is the prominent text on the front and a herd of Elephants charging at the viewer like you might see a stampede of horses do on a western movie's poster.

Good designs celebrating milestone events for the project.