I've done a Mark VI and War Machine with lights so using the Iron Man Mark IV Walmart Exclusive I was able to finish the last of the 6" figures. The body had to be cracked open and hollowed out to make room for the lights. Once that was done I used a light up LED system from a dollar store spy-gear-headset and ran it up through the chest. For instructions on how to do this check out the Guides and Tutorials section of my site
Looking to buy some custom figures from customizers all over the world? Look no further!