Here are three favorites of mine. The "concept" Anakin was my own interpretation of what Anakin would look like when he turned to the Dark Side. I made this in 2003 before any images were leaked to the public. The scar was recently added to the face. The chain is made from a real thin anklet that was clipped to the right size. The holoprojector is a retooled radar tower from the AOTC Padme pilot figure. Lightning is from AOTC Yoda. Cape and Sidious holo is AOTC Dooku.
The Mustafar Anakin was a combination of Sharpies and fire applied to the ROTS #50 Mustafar Anakin figure. I used reference photos from the movie and images from the Making of ROTS book when I made it this past summer. Only glitch here was that I accidently melted the nose because the plastic was thinner than expected. Still, it came out great. I added Sith eyes and individually colored the wires in red and blue. There is actual blistering on the plastic due to the heat applied.