IIf you want to try out resin castings, , its a Uk company that supplys resin, look at the G26 range, speak to the tech guy about what you want to do with it. He'll recommend to you what you can use, and then send you a 1KG sample kit.
Then speak to and again, speak to the about what you want to do, and they will again send you a silicone 1kg sample. BTW, just say that your just starting a business up, lol.
hope that helps