I've been using a laser with my boys recently and both love it. Although I did point it on Freckles front paw once, and he looked at it in shock, slowly turned his paw over and then looked at me in surprise Probably a bit unfair but he is not the kitty I'm worried about.
Bloo has developed a bit of an obsession with Trixie Nub Balls so the laser was purchased a safe alternative that I can control the length of play-time. Luckily it's only the balls and nothing else so far...