A one man shop in Sweden owned by Mattias Hellore. He makes chain rings just like you want them. So I ordered a 26 and 38T in aluminum for my crank.
He also does titanium but because I was not sure yet if riding double is really something for so first I"ll test these. The Crank needed some tuning to become a double, you can see this on the picture. Afterwards I gave it a paintjob. Hope you like it...