I recently unpacked my Master Replica FX Lightsabers and am having a problem with the grips on the Darth Vader lightsaber. They are all sticky. It was stored in the original box in the house so it was in A/C and not exposed to heat. I was wondering if anybody else is having this problem with the Vader grips getting sticky with age. If so, is there a way to clean them so they are not sticky? Or, alternately does anybody have a acceptable replacement for the rubber like grips that are glued to the lightsaber hilt? I should mention this is the original MR FX Darth Vader saber.