Buckaroo!

Load up the mule, and hope he doesn't buck
Classic stacking game
Fast, tense and fun!
Players: 2-4
Play Time: 10 mins
 
The saddle-stacking game with the moody mule.
 
Put on the shovel, balance the bottle. If it's too heavy, the mule will kick. See how much he can carry. You never know when he'll snap and send everything flying.
 
Also available as Ali Baba with a camel.
 
 
 
More info at: Board Game Geek