Same also with the rubbers for the tail lights. Mine are shot and they've got too much goo on the insides to re-use.
Otherwise ...
I'm looking for some industrial-grade stuff to put between my decklid, hood and steel tonneau and the rest of the body parts. I'd like to find some that sticks on only one side and creates a PolyGrip-like seal when I compress it.
Depending on how well it works in the hidden areas, I might like to seal up my door openings with it, too.
For now, I'm going to use hood pins to hold the three detachable parts onto the car. This seal is going to be critical to my overall design success.