Squishbeans
The squishy, bean-like toe-pads that conceal a cat's claws. they can come in many different colours from pink to brown to grey to almost black and everything in between. squeezing the squishbean of a cat using one finger on the squishbean and one on the back of the toe will trigger the release mechanism for the claw to emerge. do this only with a safe, tame and patient cat and only do it once for minimal eye-clawing results.
Bob's cat has really small squishbeans, but large claws.