From American Science & Surplus:

"Perfect Cast

A small bucket full of PerfectCastTM - a plaster substitute said to be 5 times as durable, while allowing you to make detailed casts from intricate molds. Just mix with water. Easy to use (add 1 part powder to 3 parts water). Dries fast, easy to stain or paint, certified non-toxic! 2 pounds of powder per bucket.  $4.95

http://www.sciplus.com/singleItem.cfm/t … mailid/115

I haven't tried it, but it sounds like something we could use for making a mold for PM work.

If you're not familiar with this place, they have a TON of all kinds of stuff.  I think they still have a $10 minimum order, though, plus shipping.  You can get a free catalog and look for other stuff for a combined order.  The catalog is easier to shop than the website.

I've ordered from them for several years, and was always happy with them.

Sue