The Sewer Scraper was one of my designs for the second year of the Playmates TMNT toy line, and I was bummed that it was never made. I thought it was cool, and I would have enjoyed playing with it! I think it would also have been fun to use in the TV show.

The One-Mutant Assault Helicopter was intended for use by the Shredder's mutant henchcreatures -- I think that may be Rocksteady in the cockpit. This design was also never made into a toy.

-- Peter Laird