Change Zipper's Mechanics While Interacting With Bumper?

I play a lot of rebound, and it happens so frequently that when you land a zipper next to a bumper in the ground (say a circle bumper) and you'd think it would interact like a roller to a circle, but just phases right on through. Maybe change the zipper to bounce more like a roller would on bumpers, and if not just have it get bounced back by the bumper in the opposite direction?