I got some AirPods Pro (2nd gen, if it matters) as a gift. Nice, but they fit like E36 M3, fall out pretty regularly. I installed the largest nubbies, which helps one ear, but apparently my parents dropped me on my head as a child and the other ear hole is too big even for the big nubbies.
I looked into custom-molded in-ear adapters, but they're $$.
Any ideas for cheap (<$30), effective ways to keep me from having them fall out and into, say, the toilet?