When I ran a salvage yard, I found a case of K-Y Jelly in the trunk of one. No telling what someone used that much for. However, I found that if you're putting rubber bushings into an old car (in this case, a 1970 Malibu) you can spray some water on the metal part, smear a little jelly on the rubber part, and it will generally go right in. Make sure to keep your hands dry though as you get them wet and then grab the jellied up part, it can sail a long ways under benches and such.