This one I did for one of our members.
The request was for a purple acrylic, but the kind that is almost black with light purple tint.
I was not able to find exactly that but I found a very cool transparent purple with very low transparency factor.
I especially like how the body of the scales are very deep almost black purple, while close to the edges the purple really comes forward for a nice effect.
The blade was done with greaseless and buffing compounds as much as it allowed, brass pins and washers.
http://i49.tinypic.com/21np24x.jpg
http://i50.tinypic.com/ng2j4m.jpg
http://i48.tinypic.com/2hcn4fr.jpg
http://i49.tinypic.com/121baxe.jpg