Flying Bird Rings

From Colossal:

"Kansas-based metalsmith and jeweler Dukno Yoon creates rings, bracelets, and other devices that mimic the movements of birds by harnessing the motion caused by a flick of the wrist or the flexing of fingers."

"Yoon received his BFA from Kookmin University, Seoul and a MFA from Miami University in Oxford, Ohio,

and most recently has been working on a series of metronomes [below] that also explore the movement of birds."

"Head over to his Wings gallery to see many more devices in action, 

the bracelets in particular are really fun to watch."