"Light saber blade looks like pizza" -- quality design right there
The Teenage Mutant Ninja Turtles x Star Wars Mashup Toys That Never Were

There are some concept sketches created by Teenage Mutant Ninja Turtle artist Michael Dooney around 1991, allegedly after Kenner/Hasbro let their licensing rights to Star Wars toys lapse and Playmates made a pitch to get it with these mashup TMNT x Star Wars action figures. Now I know what you’re thinking, and I agree: it’s almost impossible to believe Lucasfilm said no.

Keep going for a closeup of each as well as ones with highlighted details, plus some BONUS fan-made physical recreations of the toys courtesy of Instagrammer geeks_antiques.