The Graphics Fairy and (as the name implies) she is a Fairy Blogger who brings you charming vintage images for free. If you are looking for a unique Christmas card or tag, this is a great resource.
Be warned however, her site is highly addicting (I find myself roaming her site memorized). I had a hard time picking out my Holiday card because there are so many good options!
*pronounced like an Aussie or Brit, because it sounds better.