http://monster-bash.freeonlinegames.com/
It is yet another one of those two-click games: you click to start, and click again to whack some object as far as possible... and that's the entire premise of it. It's partly about the timing of your second click, and very heavily about sheer luck regarding what the object happens to land on/bounce off.
These kinds of games are usually quite entertaining in some way, but this one certainly takes the cake, as it's in 3d, and remarkably good 3d for such a quick little Flash game. It's a brilliantly animated and very entertaining little monster dude who batters skulls as far as he can. (It's really not as morbid as that sounds!)
When I say 3d, I mean the graphics and some of the gameplay. Your initial 2 clicks are technically only a 1 dimensional affair (timing), but when the skull gets launched, the camera follows it across a 3d playing area (obviously, it could be an illusion, and in fact there is only a finite number of 2-dimensional paths through the 3d landscape... but I don't see evidence of that... yet...)
Go and try out the game! It's got a bit of sponsorship on it, but it's not instrusive, and it does run a bit slow on my laptop (like everything these days). Well worth a try though!