Jewelry, Eyewear and Watch Design Homa Dual Purpose Ring by Mehdi Moazzen Homa is designed to be a practical dual purpose artwork, changing from a ring to a necklace. It gives its user the option of choosing the function to stimulate the feeling of interaction amid the creator and the user. Since the inner ring is elastic, it can be adjusted based on the size of user’s finger. A rail mechanism, based on train wheels, is devised to turn the ring to a necklace. Choosing a rail mechanism and making the movable part of ring are the creative parts of this design. A simple lock has been utilized beneath this piece; so it could be fixed after getting in the Ring mode.