My sons, now 2 and 5, always enjoy coming in my music room, twiddling knobs and switches on all the gear, and of course they love plucking on the basses!
My older son Joseph really seemed fascinated with drums, though, and kept saying he wanted to play drums - so I ended up getting him one of those junior sized kits for the holidays last year. He's actually taking to them well! I captured a short clip of him last weekend:
The battery ran out just before he broke into ELP's Toccata
. That's Michael flying in and out of frame. He's providing some interpretive dance and/or trying to start a mosh pit (knowing Mike, the latter is probably more the case).
Any clips of the kids jamming that you would like to share??