Spray paint the plastic bottle and 4 plastic bottle caps (if you would like). The plastic bottle are going to be the skin of the vehicle (be sure you maintain the original bottle cap on the bottle as you'll be making use of that quickly). Your browser isn’t supported anymore. https://toytruckassembly07283.pointblog.net/the-smart-trick-of-fire-truck-build-that-nobody-is-discussing-70522453