Originally Posted by Viper1GJ

That's exactly what I did on my first homemade tanks. Worked ok but if for some reason it fails or I finally need to make a female mold it would mess up my plug. Hoping my plan for two sides will work just like the ones Paul makes for the foamie turbine conversions, just a larger size. If not I could use the plug to make a mold. I've never done that before either. The photos of my first try are here in post #461-#463: Skymaster 1/5 Scale F16 Build Thread #461-#463 Thanks for the tips.