These are my favorite glass boards, http://www.monomachines.com/shop/presentation-tools/glass-dry-erase-boards.html, I LOVE the pop of color. You can get clear glass table tops from IKEA and spray paint the back with whatever color you’d like. Then put contact paper over the painted surface to keep it from getting knicked or scratched. Hang the same way as this hack and there ya go!
Read more at http://www.ikeahackers.net/2012/01/not-expensive-glass-whiteboard.html#hHH7OLG0C4GZRT49.99