Magnetic tray/bowls are great at holding parts when disassembling keyboards or switches. However I don’t care for the spittoon ping noise every time a part is thrown in. After experimenting came with a few simple mods to quiet it down:
Option 1 Rubber band (slightly better option if you have the perfect size rubber band)
Option 2 Use 2 binder clips on the top of the bowl
Sure there are other options and plastic bowls that can be purchased but this only takes like a minute to do and for me worked out surprisingly well.