sierrax
+1y
Mould making in small quantity's is not worth it. Unless you have a product that is low cost and high retail. Especially with plastic which should be injected but doesn't have to be. Once you have made your mould like it was outlined above, its not as easy as just pounding them out. After each taillight is formed (with heat or whatever) is has to be cleaned. Some of the release agents can take 4 hours to work. So with 1 mould you could only make 3 sets a day. To do it for cheap, but it may take you longer, try making an positive mould out of hard wood. Heat up your plexy/lexan/whatever an lay it over the wood. Let it cool and trim the edges, crack the outter lense off a stock set and put them' together. It may make a few sets for you and your friends.