Where there any shortages that weren't just from people overbuying because of the fear of a shortage?

[Skywatcher]

Here’s a recent thread over in MPSIMS about hobby equipment shortages:

Hobby parts unavailable during the Pandemic

Keeping tropical fish is one of my hobbies. I am unable to find a small pump used to pull air out of water carrying pipes, and a “Majano Wand”, a small rod that uses 12v to dissolve glass anemone pests. What can you not find for your hobby?