DIY TIP: To make your own mercury glass simply spritz glass with water then spray with Krylon "Looking Glass" spray paint and voila! I am a huge fan of mercury glass, I found Christmas Ornament's at big lots.
DIY mercury glass lamps: Krylon’s Looking Glass spray paint, which dries into a mirror-like finish. Spray the body of your plain glass with clean water. While the surface is wet, spray it thoroughly with Looking Glass spray paint.