No That's not the wayI work it, but it might work, I'll try it some day. What I do is I'll use a hot knife to melt the plastic to build up an original piece. Then refine it with dremal, sandpaper and carving. Things like canteens...ect I'll make a silecone mold and heat the plastic in toaster oven till it conforms to the mold.
Thanks for you'r wonderful comments.
Rules are overrated