bau·ble 
(bôbəl)
(bôbəl)n.
1. A showy, often inexpensive ornament, especially a piece of jewelry; a trinket.
2. A mock scepter carried by a court jester.
3. A shiny, spherical ornament, usually made of glass, used to decorate a Christmas tree.
[Middle English babel, from Old French, plaything.]