Originally Posted by Andy Lowry

Your local Walmart should have an assortment of Testor's fluorescent acrylic paints. They're inexpensive and are thick enough for easy application. Acrylic will chip off more easily than enamel, so I put a coat of clear fingernail polish over the paint. No trouble to remove if you get tired of it, and any evidence of clumsiness wipes off easily before it dries.