rope handle foam replacement?

So I have a rope that came with my boat. Not sure on the brand or if its even meant for wakeboarding. It has a large handle and a small above it. Anyways the foam around the handle tore off. I looked at it quickly while I was on the boat and it doesn't look like the handle piece detaches.

Has anyone replaced the foam handle cover? In my redneck ways i was thinkong of getting some pvc insulation foam and zip tie it on the handle.