Grafting Sculptures by Axel Erlandson
(Click on underlined title to see more) Axel Erlandson created this with six sycamores planted in a ring pattern: "To create the 'Basket Tree', Erlandson planted six sycamore trees in a circle, topped them all at one foot, letting them resprout two new upper limbs which he then approach-grafted together with the respective limbs of the adjacent sycamore plants, one to another to form the diamond patterns. For the first 2.5 meters (8') he left an opening at the top. This specimen today is featured as the centerpiece of Gilroy Gardens." (Wikipedia) This is one example among many others by him; google 'Axel Erlandson grafting'.