Probably the most efficient way would be to create a model with blender (http://blender.org http://blender.org) and then print a prototype via shapeways (http:/

Probably the most efficient way would be to create a model with blender (http://blender.org http://blender.org) and then print a prototype via shapeways (http://shapeways.com http://shapeways.com). Once the model is perfected, I think you can send it to some (China based?) companies who will send you a bid on mass producing a large number of them at a low cost.