OK, so I'm looking at starting the jet pack soon, but I'm not sure what material to use. The "For Sale" signs seem too flimsy, medium density fiberboard won't bend and 3mm Sintra didn't work out too well for my helmet, so I'm not sure I can use it on the jet pack. Maybe some type of cardboard or something? I've got ZERO experience with fiberglass and resin. Some experience with Bondo.
I'm open to suggestions.