Honestly I thought it was EXTREMELY crappy. Because...oh, wait, that would give it away...well it's DEFINITELY not good for close-up. Maybe if your bold, or if you think your audience is just stupid, you can get away with it at birthdays, but I think it should be kept on stage (if performed at all).
I don't like it at all. Even with a good gimmick made, it still would look crappy.
yeah i agree, it is a pretty bad effect if you are close up...on stage though, with your audience further away, it works ok.