That site and a few others gave me the idea to make this part for my car (I already make replacement rubber door pulls blank forms that have to be vinyl covered for 60's Lincolns). hopefully this single stage casting for the arm rests will work out. If not I'll go to a harder (as in expensive) way to roto-cast the metal base and rubber. Then fill it with foam. one way or another I'll have new rear armrests for the convertibles. Just cause I need em :)