The generous folks over at Think Geek are offering a 50% discount on a set of recycled coasters. The Circuit Board Coasters will appease both the geeks and the eco-friendly consumer, since they have been made of old circuit-boards. Retailing for $13.99, the set contains assorted colored circuit-board coasters and prove the perfect cushion for your favorite beverage. Each coaster measures 3.75″ in diameter and every set has a varied design, since they are made of different circuit-boards. The Circuit Board Coasters can be ordered online from here.