Prints of Michelle Hinebrook's painting Sugarcoat, meant to evoke the taste of candy, are available on 20x200 for only 20 bucks. If you've got a little kid who's a fan of candy and of the colour pink, it would be pretty on the wall in her (or his) room.
This striped Christmas tree ornament, made out of ceramic tiles, is also available at Anthropologie, but only online. (Incidentally if you're going to try to make Christmas stickers out of Christmassy images, as I suggested below, you might try Anthropologie for some great images.)
The Dotty-Wotty house, part of the Heidelberg Project, an outdoor art installation project in an inner-city neighbourhood in Detroit, Michigan, created by artist Tyree Guyton, whose trademark is the dot. Neighbourhood children helped him to paint abandoned houses in the area.