Croatian designer Hrvoje Vulama's "Chair 4 Sitting" may appear magnificently uncomfortable, given the floating apperance of the back, but gets high marks for 2 things - 1. successfully drawing inspiration from the work of George Nakashima without "biting" and 2. being environmentally friendly. Vulama constructed the prototype with scraps from previous projects, ensuring that no new trees were harmed in creation. [Behance