The RGB Glasses from designer Luís Porém are hollow and made to be filled with the ink colour of your choice. Want black glasses? Add black ink! Want pink glasses? Add pink ink! Want tortoiseshell glasses? Add brown, orange, and black ink! Want to frighten everyone you pass? Add the blood of your fallen enemies and smile while you gnaw on a raw arm.
Alternatively, check out the unique colour ranges on seeinstyle.com for that daring look with a difference!