Sottovaso Tondo. Large round terra cotta trays from Italy that can be used under pots to catch water. They are also strong enough to be used as an outdoor tabletop on a frame or pedestal.

25.5 dia x 3" deep; 29 lbs. $119
31" dia x 3" deep; 44 lbs.  $149
35" dia x 3" deep; 55 lbs.  $179