The word is strand. It means a string of pearls that could be worn around the neck.
Bib aprons are aprons that are worn around the neck like a baby bib. It covers the chest area down. There is a strap that goes around the neck that hold the apron up. You can see example of bib aprons at the following link http://www.universityfashions.com/aprons/bib_108.html
Kimono
Veil, vest, vestment (worn by clergy during a ceremony), V-neck sweater and visor are clothing items.
Cover
tie
tie
scarf
a tie
necklace
tie
A necklace
The answer to "neck is to scarf" is "waist is to belt." Just as a scarf is worn around the neck, a belt is worn around the waist.
scarf
An ascot is typically worn around the neck. It is a type of neckwear that is usually worn under the shirt collar and tied in a loose knot at the front.
If you mean something from Polynesian culture, they are sometimes worn as a good luck charm, a pendant around the neck
A wimple is a cloth which covers the head and is worn around the neck and chin, worn by nuns in certain orders.