Clay mania.

• Position: Holiday Gifts Galore - Brief Article

"Guess what this is?" is perhaps the most-asked question ever by kids, as they hold up some strange drawing or multi-headed creation made from clay.

To organize this potpourri of artistic expression, we turned to Claymania ($17.99), from Gamewright, Watertown, Mass., which requires players to identify quickly objects a teammate shapes and sculpts out of clay. The action can be fast and...