Greg from LaserBear has just listed replacement rubber feet for multiple consoles: SNES/SFC, NES, Famicom, FDS, AES and Xbox. The Xbox ones also have holes pre-cut, to allow access to the case screws, without removing the feet – A really nice touch. The price is $5 plus shipping, with a Black Friday discount:
Purchase Here: https://retrorgb.link/rubberfeet
I think these are especially nice for the Retro Game Restore clear shells, as they don’t come with the replacement feet. While they’re certainly not needed, it’s a nice touch that really completes the new case upgrade!
While this post specifically talks about the transparent red NES shells, links to all are there: https://www.retrorgb.com/retro-game-restore-transparent-red-nes-shells.html