Up until the last big earthquake in Christchurch, I had a tame rubber manufacurer who, if I made a suitable mold would make any artical like that. We were making molds for rubber components for war time Willys Jeeps, but the workshop is in the cordoned off area, I must see if I can get them back. The boss there estimated the value at Between $NZ1000 and $NZ2500, but all they cost me was a few hours on the lathe and mill. You may have a hard job finding such a low tech manufacturer anywhere, well perhaps in some 3rd world country. But an ideal place for small production runs. Ian S C