I saw this idea of painting a mason jar on Pinterest.  I have quite a few mason jars and I had some spray paint left over from spraying the blades on my ceiling fan for my bedroom re-do.  I think it turned out pretty cute!  Would also be a great idea to paint several in pastel colors and use them as centerpieces for a baby shower OR paint them red, white & blue for a summer party . . . hmmmmm!