Great idea, I use a have a heart trap, with a small twist.
After the little squirrels get caught in the trap, I put them in a nice big trash can while they're still in the trap...........
Did I forget to mention that the garbage can is full of water. The little suckers keep getting in my attic, so I take a rather drastic approach, I relocate them to the afterlife. Down to just a few squirrels.