If you were looking for interesting garden furniture, something like this would be a real talking point (picture courtesy of Pooktre).  These guys actually grow trees into a shape, such as a chair or a table or just another unusual design for the garden.  Some are harvested so they can be used as indoor furniture and others are left to grow.

Over twenty years ago, an Australian artist called Peter decided he’d like to grow a chair from a tree.  It took him years to perfect his craft but eventually he managed to grow himself a chair, a mirror and a coffee table.

You can see many of the designs on the Pooktre website