Rubber duck

A  is a toy duck made of rubber. The following treasures in and  are rubber ducks or parts thereof:


 * : a complete rubber duck.
 * : the head of a rubber duck.
 * : a large rubber duck
 * : a medium rubber duck
 * : a small rubber duck
 * : a small black rubber duck

In addition, Charlie also owns a rubber duck, and insists on having it with him whenever possible.