So you mentioned earlier that oils have to be pre-processed to make them viable for catalyzation into resin, I'm assuming this isn't something someone at home can just do with a sauce pan on a stove or we'd have resin recepies all over the place (While I have found one DIY photopolymer how-to, it had about twelve components and looked a whole lot more complex than what you're describing.)

Besides, vegetable oil and Cumin sounds more like the start of a good stir fry than a hard plastic.