McDonald's: Tooth Fairy

A boy prepares for bed. Having lost a tooth, he places it in a glass of water, and leaves it for the Tooth Fairy. Waking he finds a coin in its place which he and his grandfather take to McDonalds. That night the boy peers into Granddad's room only to see an entire set of teeth by the bed. Grandfather awakes to a mountain of coins, but no dentures. Laughing the pair head back to McDonalds. McDonalds: You always return.