Here is another figure from a few years back.
Head: Street Fighter Birdie
Right Elbow: AoA Sabretooth neck
Right hand: animated Hellboy
Rest of right arm: small bottle, screws and bolts
This was a figure that I have been wanting to make for a long time. I actually have Komodo and Constrictor on my list as well, but I had the urge to make Srg. Green first. The arm was my main concern, but I decided to try using a small medicine bottle with some apoxie sculpt. The raised elements are sculpted on with a few bolt heads and screwed used to make it look a bit more mechanical. I had a neck joint left over from my Blazing Skull custom that used AoA Sabretooth, so I used that on Gauntlet's elbow to ensure he has full range of movement... essentially creating an "elbow".
I know the arm isn't 100% faithful to the comic, but he's been drawn so many ways. The original artist drew a very basic, sleek arm, but recently Humberto Ramos has been drawing the arm with a lot of technical detail. Overall I am happy with how the arm turned out.
The rest of him is fairly basic stuff. I sliced off Birdie's hairdo and earrings, removed most of Sryker's armour elements and converted his triple-arm into a single arm. I had to slice the main ball joint off, remove the three "shoulder" joints and then melt together one shoulder with the ball joint. The arm does stick out a bit, but I don't think it looks too bad.