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 pesticides that slowly release a gas vapor to kill and repel moths (and their larvae) and other insects. Mothballs are also used to repel snakes, mice, and other animals, though this use is not recommended and can be harmful to pets, children, and the environment.