eBay seller Auction from Hell has listed several auctions for original Generation 1 animation cells. These cells are from the original 1986 Movie and seem to be only partial, containing the backgrounds and base coloring for the frame. Final line art is missing which would make each complete and therefore “as seen” in the movie. These truly are a rare sight to see, so even if you can’t afford them, they are worth checking out for nostalgia purposes!
Check them out here:Optimus Prime Animation Cell | Megatron Animation Cell | Starscream Animation Cell | Sharkticon Animation Cell