I was going to buy one before Christmas so I read all the reviews on Amazon.com and a few pet websites and decided not to waste my money.

Now I have to tell you about a really funny item we bought. It's a red LED light on a collar. We strap it on Moxie (it hooks with velcro or we'd never get it on her) and let her run. She and all the cats chase it around the house and since it's LED and not a laser it doesn't hurt their eyes. We've put it on Jazz and Rocky and they have a blast chasing it all by themselves. I think we bought it at a SuperPetz when they were going out of business for about $2.50. It was well worth it!

I just found it online.
Light Chaser
LOL, I see the two reviews at Amazon for this aren't good but my cats sure do enjoy it.