When I first started teaching I bought items in a array of colors. After three years in a rainbow room I decided I wanted a color scheme. So I have spray painted, and spray painted, and spray painted. I found this awesome spray paint tool. It is a comfort spray grip that I picked at Wal-mart for like three dollars. It saves your finger, you'll have less paint on your hands, and it sprays better.
I love it! Even if your pointers are not worn out you can still use the cute printed duct tape to match your classroom theme.