If you are simply looking for a bent pin to fit in the conventional type 10mm plug, you can contact George Vance through SLAVA publishing.
http://www.slavapub.net
He can bend a pin for you to your specs. He also sells the Laborie pin that requires installation by a luthier.
There is also the egg pin. It is a variable angle pin. It can be brought from a variety of string shops/suppliers/luthiers/etc.