Answer:
Can describe a distress signal or flashy accessories.
What instrument can make any sound and be heard but not touched or seen?
What is filled with air and sometimes a gas, tied to a string and often seen on your birthday?
Where jewelry pierces your head.
I'm often served as a "rack of ..." I'm often smoked or grilled, with bones in, and slathered in BBQ sauce.
It is something you will never see again.