I find it hard to find maker materials at least where I live(Toronto, Canada area) so to help other people find stuff , I going to post when I find something. You can see all the posts in this series: Here. Today’s thing is:
Liquid Latex also known as mold builder. liquid latex is a thick liquid(think heavy cream) that is used to paint on the object to be molded witch when it is dry makes a flexible mold of the object. The latex can painted on many objects and the mold itself can used to cast many materials. The cheapest place to get this stuff I have found so far(in my area) is: Currys Art Store. It comes in four sizes; 250ml for $8.79; 500ml for $11.29(most likely the best bet for most people); but you can go bigger with a litre for $20.29; and you can go super sized with a gallon for $57.95. You can see the web page with all the sizes: Here. Note: I have not bought any of the above products so I can not comment on the quality.