Maybe at the begining might be expensive, but there some things that are reusable. Lace molds can be quite expensive. I bought some for $30 dollars. The real neat thing about it is you can do things for your own taste.
This molds are not only for lace. You can make lost of molds. I did one with a wood piece, you can use jewelry, bottons..
All sorts of things. I saw his tutotial in ICES last year and the product is very good and strong.