The Maxx is a little-known hero from a little-known comic book by the same name.  In 1995, there was even a short-run cartoon, based on the comic book, that aired on MTV. Any-hoo, The Maxx was born out of fodder figures I had lying around that I had *no* use for.  Legs from a Light-Up Weapons Juggernaut, and torso/head/arms from a Zangief figure from the Zangief vs. Juggernaut 2-pack.  But in the end, the figure ended up being almost more trouble than it was worth.
    At first, I was just going to perform a simple leg-swap and be on my way.  I popped the legs out of Juggernaut easily enough, but when I removed Zangief's legs, I ran into some trouble.  First, I accidentally stretched his arm pegs while pulling on the legs.  Second, the peg sizes were completely incompatible, as Juggernaut's pegs were about half the size of Zangief's.  Solution to these problems?  Crack the torso.
    While inside the torso, I removed the arm-swinging apparatus from Zangief's arms, and filled the resulting hole in his back with plumber's putty.  I then heated the arms in the oven, and while the plastic was soft pushed on it to shorten it to the right size again.  I also filled the empty part of the arm pegs with more plumber's putty, and screwed a sheet metal screw into the hardened putty to fatten the peg a bit (thanks to Ron Kenyon for the tip).  I also trimmed off the weird, pink vein-things that were all over his arms, and sanded the arms smooth.  I then lopped of his huge hands behind the wrist-bands, and then scratch-sculpted The Maxx's excellent spiked hands from Sculpey.  That covers the arms.
    Now the legs.  First, I transplanted the leg pegs from Zangief's legs onto Juggernaut's legs so the size would be correct in the new torso (again, many thanks to Ron for an excellent peg-swapping technique).  I then sculpted The Maxx's large boot-feet over Juggernaut's with Sculpey.
    As final measures, I removed the large mass of hair from Zangief's chest and sanded it smooth.  I also completely sliced off Zangief's lower jaw and nose, and sculpted the toothy mask over the area with Sculpey.  Finally, I sliced Zangief's mohawk off and sanded the scalp smooth.  Once all the parts were completed, I put the limbs/head back in the torso, and glued the torso back together.

  Prime, paint and seal, and you've got the world's only homeless psychopathic super hero.