I wanted a Skeletor to oppose my He-Man. Only I didn't want him to have the same frame as He-Man as we always see in all of the officially released figures.
I chose the Bizarro body for the shape and frame, so he would look crooked and twisted, as well I wanted something that would look like he could menace He-Man. We're talking about the evil lord of Destruction. In fact I made Skeletor just a little larger than He-Man to look like a threat to him. I made my He-Man a little more bada$$, so I needed a Skeletor who I felt could outmatch that....
Okay that aside... while I was making this figure I was about to paint Bizarro's underoos that would be under Skeletor's accessories, but I couldn't bring myself to do it, it was just too funny, and that's what that little picture in the third image is about.

Recipe
merged a DC Universe Bizarro with a 200x Skeletor
-cut off Skeletor arms above wrist bracers, dremilling them out to fit the wrist of the Bizarro arms.
-cut off Skeletor legs above the greaves (leg armor), dremilled them out to fit Bizarro legs cut off below knee.