I've started to become petty and won't clap when they announce milestones that aren't milestones. "Peter is doing his 200th event" good for him, but he's not getting a t-shirt.
I'm not keen on those customisable ones for the different events, too much going on.
The parkrun branded stuff is of varying quality too. Love the cut of the milestone t-shirts, but the print on the back tends to come off.
I don't have one, but the orange parkrun tops seem to cling to everyone in a rather unflattering way.
I had a rather uneventful run today, but very pleasant!