It's a Bell!
Hang it in a tree, or from a hook under the eaves to look at through a kitchen window like I do, or put it on a shelf to ring at will, or hang from a bird feeder perhaps?
This one is white clay with various green glazes
roughly 5.5 x 4 inches for bell body
10.5 inches from top of ceramic to bottom of ceramic, adjustable polished hemp cord