The JL Superman had a wide enough torso that would work for Sinestro.  So to make him fit with my Hasbro scale of animated figures, I gave him some height by lengthening him at the boot line, elbows, and waist.  The face is still Supes but modified with epoxy putty and X-acto slices to his chin and eyebrows..

 

 

BATMAN BATMAN BATMAN GREE

 

SINESTRO