wiGrob,

Any sign shop should be able to create you a graphic for your sail. Mylar mainsails are great receivers of vinyl graphics although there are some tricks to applying them that can save you time and give you a better application. I've got some step by step photos if you get to that point. Dacron sails should be able to receive vinyl graphics and while I have had some success with that in the past, I really haven't tested it thoroughly enough.

Be sure the sign shop uses a premium 8 to 9 year rated vinyl. While the mylar does receive the vinyl well, the little bumps from seams and scrim threads require the vinyl to be very flexible in order to go over them and remain "stuck".

If you need any help getting the graphic into a vectorized form for a sign shop, I will be glad to help.