Here's a simple way to make an object "swing". Knowing my knowledge, there's probably a better and easier way to do this, but by combining sine behaviours you can acheive a simple swing, also inlcuded in this is ropes that attach to the "board" and move with it.
I guess it could be useful as a swinging light in a platformer, or something else to add atmosphere...
<img src="http://i43.tinypic.com/jtvx8x.jpg" border="0" />
Cap:
dl.dropbox.com/u/48504160/basicswing.cap