"Mad Money" refers to any money, usually a small amount, set aside for spontaneous or even impulsive purposes.

During the Great Depression, it became very popular to hide money in jewelry as a way to keep cash close. Later in the 1950s-70s, these "Mad Money" charms became whimsical and humorous good luck charms, because you never know when you might need an extra dollar!

This solid gold charm contains a real folded $1 bill and is embossed with dollar signs, "MAD MONEY," and "IN EMERGENCY BREAK GLASS," and a tiny hammer charm in case you ever need to!