Thank you all for the help and advice - I will see what I can find. I can wash the odd fleece, although my customers would prefer them raw.
Worzel - I agree in principal, but Hebridean sheep are not found in America. There are a few flocks in the Netherlands but otherwise it is a breed firmly based in Britain. It would be wonderful if there were satelite flocks around the world, for the safety of the breed in the event of a major disease outbreak here, but so far it has been too expensive to set up flocks elsewhere. The fleeces I would export are to hand spinners who want to experience the different and specific qualities of a Hebridean fleece - as a spinner myself, with carefully produced, shorn, skirted and stored fleeces, I do get plenty of enquiries from Britain, but also many from abroad. I used to have a small business producing quality crossbred fleeces for a specialist spinner group, but family illness meant I had to get rid of that flock and I no longer sell fleeces as a business, just to help people out who want to try this particular rare breed fleece. I would not be sending large quantities of fleece overseas, just the occasional individual one, but I would rather they weren't confiscated at customs. I think it is worth the hassle, although not financially, just to be part of the international sisterhood of spinners.