Juts posted this on my Rare Action Figure Blog, but figured I should post it here as well.

This seller has a bunch of sweet original artwork, pre production and prototype items.

http://stores.ebay.com/senuseret72

There's a lot of different stuff there, but it includes some Transformers Transparencies, Original Artwork, and Proof Cards.

Looks like not many people have noticed them either, as most of them are only a few bucks with a day to go.

Apparently, this seller has been selling stuff like this for some time. I'm told he's reached the bottom of the barrel however. In the beginning he had stuff like the original paintings of the box/card-back battle scenes and the original paintings for a bunch of characters' box art. He had almost a half dozen pink Hot Rod first shots with the exposed knees. He had a ton of G1 hardcopies. He had the G2 Stunticons. He had mock-ups of Autobot car and Decepticon jet repaints for G2.

Cool stuff.

Damn, he's got a Battle Beast going for over 400 bucks with 11 bids.

Apparently this guy has been selling stuff like this for ages. I'm told that in the beginning he had stuff like the original paintings of the box/card-back battle scenes and the original paintings for a bunch of characters' box art. He had almost a half dozen pink Hot Rod first shots with the exposed knees. He had a ton of G1 hardcopies. He had the G2 Stunticons. He had mock-ups of Autobot car and Decepticon jet repaints for G2, and more. Not bad.