I only suggested it because this isn't an extremely inticate mold. Your best bet would still be the silicone mold just because of the small recessed areas at the front (the whole for the led, etc.). But I make fiberglass molds when I cast parts for motorcycles such as seats or covers for a hot surface. It's good for making carbon fiber parts, which I doubt you'll make carbon fiber gauntlets but HEY! You never know right?