Bjorn, A while ago you posted about a material for making molds (polypropelene or something like that) I was wondering if you or anyone else found a suitable material. I'd like to make my own flexible pillar candle molds. I have a lathe so it would just be a matter of plishing up an aluminum cylinder and placing it in a carboard tube the right size bigger and pouring the plastic resin. Has anyone tried it? It seels like it could be much cheaper than buying molds.