Soaron - Head, Wings
Assassin Droid - Base Figure
TX-20/TA-175 - Hands, Feet
SP-4 & JN-66 (Research Droids) - Wing Arms, Drone
Ivan "Whiplash" Vanko - Head Tail
Weapon Assault Drone - Drone Tails
The Corps! - Blaster
Based on some old Captain Power figures, these two were created for the "Rise of the Robots" No-Joe-Challenge at joecustoms.com. Originally, the mini-drone was going to be an updated head design, but the longer I looked at the original head sculpt the more I was convinced it could still work. I decided to keep the alt-head as an accessory, a drone based on the Seeker enemies from X-Com: Enemy Within.
Also, there's no way these would have turned out so smooth looking if I hadn't been convinced to try spray paint again, seeing the results OreoBuilder showed in his Custom Celebration WIP threads.