First and foremost let me state the obvious, the inspiration for this figure comes from dagodfather who made the first, and proberly the best, Batman Beyond (or Batman of the Future where I come from) custom that I have seen so Thanx for the help dagodfather :)
I used the Head from a Burger King Batman Beyond figure that I got from a website and modded it to fit my Captain Marvel Base.
I cut the Bat symbol off his chest and put it on because I was to lazy to make my own :P
I would have used the forearms/hands of a figure that was seamless aka didn't wear gloves but I didn't have any spare so I used the smallest looking gloves I had which where that of Sentry and stuck the spikes on from a Mattle Batman figures gloves.
The belt and buckle are just Misc bits and bobs.
Base: Captain Marvel
Head, Bat Symbol: Burger King Batman Beyond Figure
Spikes: Mattle Batman Figure
Belt and Buckle: Misc