WARNING: These cheap pieces of plastic will NOT work with most Cherry keyboards. When the key gets pushed down the plastic pieces get stuck inside the cap and will either not allow the key to come back up or will pull the plastic piece off with this. DO NOT BUY.
TacoooThey fit on every keyboard I've used so far.
The colour is another story, but they physically fit without altering the feel of the keys too much.
There are issues with DoubleShot keys and keys with a thicker sidewall, rubbing the LED caps.
TL:DR
InB4 Pebkac