So I have two 1:18 scale notchie fieros and I'm doing one up as the Indy, but it was second hand and was missing the spoiler. So I made a silicone mold of the one I do have and duplicated it. Took a couple tries on the mold but eventually it turned out perfect.
So if anyone happens to need a spoiler for a 1:18 fiero or another diecast that requires the majesty of the fiero wing, just say the word and I'll do one up for you. Seemed like a lot of work for one little piece. Or maybe even a cell phone spoiler.