While reading Amy Stein's blog, I was reminded of the great print collections in the Library of Congress, Museum of the City of New York, and The Metropolitan Museum of Art. The prints are affordable at $28-$125 and they would make gorgeous gifts (for any time of the year). I own a good number of the ones from the Met (I helped produce some of them) and I think they are top notch. I'm sure other museums and institutions offer prints sales as well. It's a great way to support them.