I saw these, and think they look very cool! and just in case you don't wear glasses, they do sunglasses too. they are made of water buffalo horn, and each pair is hand manufactured. images of the process are at the bottom of the post (this is the bit i usually find most interesting!).
Zurich and London designers Aekae have designed a collection of glasses made of water buffalo horns. The range of eyewear, called SIRE, consists of three pairs of sunglasses and three pairs of correctional frames.
Each SIRE natural horn spectacle consists of up to seven thin layers of horn. The core plates of horn fibers run in opposite directions known as the ”Triplex Safety System”, which is considered to offer the highest standards in quality, stability and resistance to deformation. The only waste in the production are horn splinters, which serve as natural plant nutrition. At the end of the manufacturing process every frame is polished carefully by hand, to make the natural horn structure visible.
The water buffalo is a domesticated animal throughout Asia, comparable to our cattle. It is normally trained to plow and harvest fields, and is vital in the rice plantations. Besides also supplying milk and leather, the horns, which can reach two meters in length, are later used for exclusive natural products.