Valise Portmanteau (although this term is not used very much today) Tote, Bag, Purse, Duffle all come to mind.
What is the name of the small piece of cartilage at the bottom of the sternum
Another name for a small town is a village.
A piece of feces A piece of s--- A poop
Coronet is another name for a small crown.Tiara is also another word for a small crown.
another name for small intestine is bowel/alimentary canal.
A snowflake, I think.
A piece of broken pottery is called a shard.
a chocolate button?
cover slip is a small piece of glass which is used to cover.
A Gherkin is another name for a small pickled cucumber.
a hot rock
It is probably named the RV Luggage Company.
A cascade is a small waterfall.
Another name for a small bouquet is a posy.
the rook, which is another name for a castle in chess
I think you are asking about a plectrum... a small piece of plastic or metal or anything stiffish really used to pluck the strings of a guitar