Well, I stumbled upon a pretty neat source of how-to videos and thought some of us could use them. The videos are made by Tap Plastics. Link to videos: Instructional Videos: TAP Plastics
__________________ "The dissecting room and the slaughterhouse furnished many of my materials; and often did my human nature turn with loathing from my occupation, whilst, still urged on by an eagerness which perpetually increased, I brought my work near to a conclusion." - Dr. Victor Frankenstein
I attended Iron stock this past weekend and one of the classes was on using expanding foam and flex wax to make hand casting. Here is the on line link and instructions on how to do it Flexwax | AranaMuerta.com
The result where very lifelike.