I think I have found a local supplier of grommets. It's an upholstry supply shop in Quincy. I am going to bring down some grommets and he is going to see if he can get them.

Specialist:
The company that makes the grommets is a company called Stimpson. I think they are in NY or NJ. They will sell them through distributors, but there are large minimum buys. They make thousands of types of grommets.
Regards,
JEMc