Go to the village and enter the house with the patrolling young lady. Go up to the painting on the back wall and pull on it. Hold on until coins appear.

Go in the Desert of Mystery, very close to where you obtained the second pendant. There are two big rocks after you obtained the Power Gloves. They are in the same temple as the second Pendent. Pick up the rock that is behind the first rock. There should be steps there. Go down to find a man surrounded by pots. You will find five rupees under every pot. Exit, then re-enter until you obtain as many rupees as needed.

Go to Turtle Rock in the Dark World. Pull on the right paw and wait for coins.