This bike is being built by a guy (Metalho) on TCU for the Biker Build Off they have every year. Just about everything on it is custom (and not that Harley chrome dodad custom, I don't allow bikes like that on here). He has made everything from the frame jig to make his own frame to this friggin' awesome brass valve tail light.
Here's a pic of the bike, not quite complete but damn it's great looking and a link to check out the whole build if your interested because this bike will/should end up in a magazine.
The Chopper Underground