I've had good luck with this seller's kangaroo hides, which are getting tougher and tougher to find at any price. Not all are suitable for falconry, however, those are usually noted as such.
Of particular value are the very thin (~1mm) hides which are perfect for kestrel or other microfalconry purposes. Makes very durable bewits and could possibly work for braiding if you have a lace stripper.
Occasionally has fantastic colors or even rubber-coated hides available. The rubbery ones are great for jesses that won't slip out of your grip.
I'd suggest anyone viewing this seller please bring a sense of humor.