Sococut.llc on ebay sells Farmer, Farmer X and Electrician in both blue and green alox.
Ooh... that Blue Electrician is calling to me. I think that's less common overall. Thanks for adding another!
Knives and Tools have a few custom colours, Classics and Pioneers.
Cutlery Shoppe's website is confusing because most of their products appear out of stock and never to return. The only exclusive alox they appear to sell atm is Farmer in black.