This uncommon item is a Sonic Underground theme 'play ball'. A play ball is just a generic ball, usually smaller than a basketball, with no texture that is made of semi-soft rubber. It can be used for outdoor games and is non-specific. What makes the ball SU? They grabbed a stock Sonic and drew the 'guitar pendant' onto him, to make him 'underground'. This was available at Wal Mart during the time that SU was on the air. Being from SU, it isn't that common of an item. Owned and photographed by Macey-Grey.