Hi, I am in need of some assistance in making a set of 5 custom Master Molds for Tea Cups for sample/prototyping purposes. The cups will ultimately be in porcelain, so they need to be as thin as possible. Looking for someone who does this kind of work and who will work with me to get these samples made. Any info, referrals would be greatly appreciated! I live in Los Angeles, so local artisans would be preferred.