Fake Copper Pipe: Soft props are absolutely essential. I loved creating this action prop. This was created using foam, Dremel work, latex, sand and acrylics. Fake Hammers: Replica hammer moulded in silicone and then cast in plastic resin and polyurethane rubber (coated in latex). Then given the finishing touches to look realistic! Fake Wrench: Replica wrench moulded in silicone and then cast in plastic resin. Then painted in acrylics.