Wow. Hate to be a stick in the mud, but if the person or people who wants you to make the quilt didn't provide enough fabric for the size and style she wants, why wouldn't you simply tell her that this won't work, and she either needs to provide you with an adequate amount of fabric, or agree to a design that you come up with that will work with the amount of fabric she did give you? After over 40 years in business I have determined, unequivacably, that the customer is NOT always right. I understand that this is for a charity auction, but their expectations of what you can do have to be reasonable for what you have.