Smooth-ON Silicone Casting Tutorials

The fine folks at Smooth-On have some *great* video tutorials.

Here's the site with the inspiring tutorials:
http://www.smooth-on.com/index.html

Looks like the pourable starter kit is the way to go:
http://www.smooth-on.com/Getting-Started/c4/index.html

Try the second video on this page for a start:
http://www.smooth-on.com/Home-Projects-and-/c1271/index.html
"Making a Simple Block Mold Using OOMOO® Silicone"