Thumbtacks are a workplace staple, but often come in an uninspiring array of dull colors. To reinvent the garish, traffic-light green tacks on my bulletin board, I gave them a pretty, pastel makeover using nail polish and paint. (Nail polish works best on these flat, metal tacks, but I also used paint so I could mix custom colors.) To start, stick your tacks into an even surface, such as a discarded magazine or shoebox cover, so their heads are facing up. Paint over each tack, using 2-3 coats of each color, and then finish each tack off with a layer of clear topcoat.
(Images: Jen for Mod Cloth)