So I've really been enjoying a lot of cheap jewelry on my days off and I really liked these slip-on false nails (it's actually a really fun stim like putting bugles on your fingers and clickety clacking them and tapping them on things) but they keep popping off the metal tabs on the rings and sometimes they're a lil uncomfy so I was trying to find little foam discs to put on the underside of the nails over the metal tab part of the rings that they're superglued to for extra structure and comfort but I can't find any small and thin enough. These ones are kinda small enough but they're still about 2x too thick and all my attempts to trim / thin them have gone poorly. The diameter isn't an issue that's easy enough to trim down but I need thinner ones (and without glitter, a bunch of them are craft supplies with glitter which would be very messy and scratchy). Any thoughts? Here's some reference pics with what I have now and the thumb and pinky nails for scale.
Not totally clear on how you're intending to use them, but instead of foam, maybe try the little silicone bumpers they sell for silencing cupboard doors? You might be able to find different shapes and sizes and varieties of thickness. Also similar things available in felt.
Bumpers would be too rounded / thick to sit on top of my nails I would think, but felt is a thought! ty!