As a thank you, a client of mine tied this red string from Jerusalem around my wrist. I'll take all the good luck i can get.
Wearing a thin red string (as a type of talisman) is a custom, popularly thought to be associated with Judaism's Kabbalah, to ward off misfortune brought about by an "evil eye". In Yiddish the red string is called a roite bindele.
The red string itself is usually made from thin red wool (def not vegan) thread. It is worn, or tied, as a type of bracelet or "band" on the left wrist of the wearer (the receiving side).