I took the original head off of Generations Nightbeat, I added a 3D printed Headmaster neck I got from shapeways. After some trimming on the neck piece, I glued it into place and that's it.
The figures contained in the Custom Showcase are not for sale by Figure Realm, and the creators of the customs are no way affiliated with Figure Realm. The Custom Showcase is purely for entertainment purposes and only provides a means for the creators to show off their work and trade ideas. Figure Realm does not make or sell customs.