Whisp: Wish
Go to the southeast corner of town on a Monday night. A voice will talk to you. Follow its directions until you find Whisp the ghost. He will ask you to find his lost lamp. After you find it, go to the your house's attic. Whisp will give you a wish for finding the lamp. You can ask him to get rid of all your town's weeds, remove all the cockroaches, or get a random item.