DIY is the easiest, I use 0.3mm teflon sheet and Japanese hole punch set to make these tiny buggers. You can use (celluloid?) backings left from iPhone/i-whatever screen protectors, and Chinese copy of my $68.95 punch is now available for under $5 here: Hole Punch
Excellent. What a great idea!! Everytime I've done the center gear replacement on the DD's they go flying off into the abyss.
I have a hole punch from the dollar store was going to use plastic from packaging to make the washers dident know about the the teflon sheets