Silicon rubber mold making along with epoxy resin casting can be used for a verity of new and reproduction parts creation. One-off single pieces to small patch production runs. Resin casts are an affordable method for small to medium sized objects. We use this technique for some projects where multiple identical objects are needed, like the beer tap handles shown below which we have done for several breweries in the Charlottesville area. Other uses would be crafting, costume or cosplay items, and even dentistry. This is an economical manufacturing method of part reproduction. Additives can make resin objects have some elasticity which is optimal for costume making. There are many different formulas for the silicon moulds. Detailed and small items would need to be fairly elastic for removal without breaking the master. Larger objects are better suited to use more firm mixtures so they do not distort while casting. Epoxies also come in many different ways with hardening denseness and set time being two main factors.