Random "Natural" Movement? Is it possible?

Hey all!
Here’s the deal:
I’m trying to make some butterflies move around on a mouse over. The catch? I’m trying to get random movement but not in straight lines, rather I need curves (or lots of very short lines) as butterflies are not on rails. My AS is pretty weak in this kind of area (or any area :sure: ) and I’m hoping someone can help me.

Thanks in advance
Paddy :flower: