Hi,
They are expensive, but in my opinion well worth it. We had my daughter's feet cast in bronze and they are fantastic to hold. Although she's only a few months older than when she had them done, you can see how much she has grown. We decided that she was only going to be that age once, so we would go for it despite the expense. When my son was the same age we had the imprints of his hands and feet done in clay. They are also wonderful, though what I like about the bronze is you can pick them up and feel them (my son's hands and feet are in a glass frame). The lady who takes the moulds is great and incredibly patient. Hope that helps in your decision.
Jools