Todd Robbins said "... here's a fun alternative ..." :
http://www.tophatprod.com/store/product.php?productid=16137 

Cheeze!  It's *only* $300!  A while back I described my $15
monkey in the COAA magazine, "Carousel Organ."  I started with a $11
"Cymbalic Monkey", "Magic Monkey", from American Science & Surplus,
see http://www.sciplus.com/singleItem.cfm/terms/11834 

I used about five feet of 2-conductor wire and a horn button to jumper
across the switch, removed the cymbals, and gave him a tin cup.  With
the button on the handle of my cart, I can make the monkey shake the
cup at will, and tend to do so as a tune ends.  With a few pennies in
the cup, and the cup banging on the cart, he gets attention!

Wallace Venable

 [ Also sold at http://www.amazon.com/Cymbal-Monkey/dp/B0028DNXDI 
 [ -- Robbie