Cat Claw Nail Caps (say no to declaw)

Wow. I have never heard of such a thing. The picture of the cat is too funny with the "manicure" look of the colored claws!
It seems like a pretty good idea. I know it says it doesn't interfere with retraction, but, I would still worry about it. It would be really neat if they lasted longer, maybe a year. My only complaint would be putting them on. I wouldn't use them on my cats, as they are indoor/outdoor, but my husband's mom's cat could definitely use them. But I think it might be too much of a fight trying to get them on her. She uses her claws at random (to "play") already and doesn't care to be held much.