While vending machines come in all shapes, sizes and for many different purposes, one of the most popular with children is the crane vending machine. This is often called a toy vending machine or a claw vending machine. The purpose of these machines is to allow someone to put coins in them and then to use a guided claw to try to get one of the toys out of the machine. These are commonly found at movie theatres, arcades, restaurants, and grocery stores. A crane vending machine draws a lot of attention from children who soon become frustrated when they are unable to win a prize the first time. Because of the challenge involved, many customers pay more than once while trying to win a prize.