In reference to the reader's question about slot machines where you play for gold or silver tokens: In Las Vegas, many of the casinos have 25-cent slots that pay off a $10 jackpot with a $10 silver souvenir token.
Moth (order Lepidoptera), any of more than 150,000 species of overwhelmingly nocturnal flying insects that, along with the butterflies and skippers, constitute the order Lepidoptera.
Mothballs are small balls of chemical pesticide and deodorant sometimes used when storing clothing and other articles susceptible to damage from mold or moth larvae (especially clothes moths like Tineola bisselliella).