Mooh mentioned a "shule-a -roo". A musicologist from Maine gave me a weird percussion device of similar description. It's a tallish stick with symbols at the top, wood block, cow-bell and streamers attached. There's a spring at the bottom where you bang it on the ground - it probably could double as a pogo stick if you were caught in traffic and late for a gig.

There is also a wire running down one side where you're supposed to put an inflated pig's bladder.

I mentioned it on another site and someone did know the name but I forget what it was.