Ring of Acorns

The Ring of Acorns is a magical artifact of the House of Acorn. Presumably created at the same time as the Crown of Acorns and Sword of Acorns, it was presumably kept by the royal family despite the loss of the other two artifacts after Dr. Robotnik's coup. It was used as part of the effort to restore a comatose Alicia Acorn to full health due to its powerful healing energies. However, the Ring's power was exhausted when Amy Rose made a wish on it to be older, which resulted in her physical age increasing. The Ring afterwards became powerless, and presumably was retained only for its value as an artifact.