How about making an agreement that the museum will get a royalty on sales of the patterns?  They could use it as an advertising ploy--"buying this product helps the museum"--and you'd get free publicity and a little money.
 
I'd think it would help the sale of the patterns, too, especially if there was also some historical background included.  As a former embroidress (don't have time anymore!), I know I'd have been interested in such a product!

-- 
Janis Beth Wilkens
Curator of Collections
Museum of York County
4621 Mt. Gallant Road, Rock Hill, SC  29732-9905
803-329-2121 Fax:  803-329-5249
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http://web.cetlink.net/~myco/mycohome.html