Check out lurecraft.com. They have 900 some molds and all the plastic pouring supplies that you could need. A few starter kits too. Would not be hard to put together your own starter kit: single eye stove, pouring pans, plastic, colors, and molds. They have some info on pouring plastics in their catalog and also have a starter dvd. If you start pouring your own, I recommend doing it outside or in a well ventalated area. It stinks!

Andrew