Magic Tricks

A tried and true gimmick with a Lego look for kids, though some adults will get a kick out of this too.
It's large and weighty and very colorful. It looks and feels great. (though I should mention I have large hands)
The instruction covers a basic short routine with a couple of suggestions for color f***e though I decided on using a quiver with thin Lego pieces inside.
The routines taught could easily be extended as the blocks are removable. They're hard to remove so you wouldn't during a performance but you can put them back on during a performance. Craig Petty does a version like that on his Youtube channel.
Haven't had a chance to perform on actual kids yet (just grown ones) but I reckon they'll love it.