If you're looking for an energetic show in Vegas you can bring your kids to see, Recycled Percussion is AWESOME!!! Like other Yelpers have mentioned, you take a drumsick (or two) as you walk in and then you pick an object to be your "instrument" in the bins before you are seated. I won't give too much away, but it's very high energy, and if you like to rock, this is the show to do it to!!!
A word of caution, though - it can get VERY loud, so if you're prone to headaches, have a Tylenol, or some shots of liquor (but not both - have mercy on your liver) before you go in...