If you don't want to support a local business (like BoundlessGallery.com for example :)) buying a last second gift certificate, you might consider giving GreenDimes.com gift to help people eliminate unwanted junk mail. For $36 a year they help you search for and eliminate junk mail sources. They also plant trees as part of the deal. Their webpage is far better then SIU's too.
My wife and I signed up for this less then a month ago and we have received less junk mail (not email mind you) in the last week then we normally get in one day. They have some estimates of how many pounds of paper and waste you save on their site.
You can print out a gift certificate and satisfy almost anybody in America, we are all sick of the junk mail tidal wave.