molding putty

Anyone ever use molding putty to play around with new designs before making/buying a real mold?

I have used durhams water putty. You can use a piece of plexi glass and glue your design to the plexi glass and then pour the durhams water putty over it and let it set/cure. Once cured then remove plexi glass and use elmers glue and coat the mold and then you can pour your idea/creation into that one.
G

I will check that stuff out. I was watching Hunt for Big fish and it showed one of the guys take a pink looking putty, make a mold of a jig/spinner head and once set, pour lead into it to make the spinner head...just curious he called it molding putty...

Let me know if you do find what kind it is.
thanks

http://www.alumilite.com/ProdD...Putty or http://www.smooth-on.com/Silic....html

Here ya go, silicone molding putty. http://www.bassboatcentral.com/smileys/smile.gif