The spring league I'm working on weekends requires us to wear black shorts with black socks. I asked if we could wear black sweats instead of shorts (I lose more weight per game that way) and was told they would "prefer" shorts, so that's what I'm doing.
I have three pair of black shorts I can use for this. When I bought them years ago, I made sure they have pockets (including a back pocket for a handkerchief) because I know that in these rec leagues, it's to the officials advantage to keep possession. While some guys use a band on their wrists for that, I prefer to move something from one front pocket to the other. I've been using a chapstick for quite some time and it works well.
As I've posted previously, I used to use a Hickory Farms beefstick, but I'd get weird looks from female coaches whenever I'd move it. The hot moms were impressed, however.