Don't forget the eye drops! The Optometrist Glass Pipe is an original eye sculpture design. This piece is color change fumed. The color change means it has silver fuming, so it will change to blues and greens with use. Chameleon Glass is one of the most well known and respected American Glass companies. They are most popular for their hand pipes, bubblers, and accessories dating back as far as 1991. Located in Arizona, all pieces are 100% American made. Chameleon Glass is always creating new and innovative designs to bring fresh new products to the market.