Here is little interesting video I found.
The intersting part about it was how i came across it. I was buying milk and bread of all things at the local 7 and 11 store when I came across a HEAVY METAL magazine. I did not even know they still published that magazine....so I snatched it up. As always it contained the usual adult fair. But in the back of the magazine there was a catalog.. I spotted the Name and then I noticed there was a sketchbook out there to order. I punched that baby up in my search engine and it led me directly to this video. I'll still be trying to get my hands on the sketch book.