It all started with an idea Peter Cook had in 1987, "I wonder if I can grow a chair." But it wasn't until 1996 that he mastered the technique and his trees, known as "Pooktre", were born. It's a slow process but it's produced some amazing results. The chair on left was planted in 1998 and the photo was taken in 2008, clearly a labor of love. You can see photos of his work, including tables, chairs, mirror stands, and other designs, on the Pooktre website.