A defect on a Maple tree held the promise of something special. The swelling started from some injury or insect bite I suppose. As the tree built layer after layer of protective tissue, the grain took on the definition of the burl.
Unlike a bowl created on a lathe, this bowl follows the natural boundaries of the burl. It is irregular. I used a small rotary cutter with chain saw teeth to hollow the burl to a thin shell. I left piece of the bark around the edge making a ragged top.