story
Edit: apparently his favorite was from mongo: https://www.cs.cmu.edu/~pavlo/blog/2016/07/my-favorite-datab... which I have to agree with, that is a good shirt.
I think I might still like the Snowflake one (3) the best though. Although rereading the article he says there is writing on the back of the Snowflake one which makes me not like it as much. There are very few stylish shirts I enjoy that have writing on the back of them.