Description: A hula hoop that's filled with beads spinning around. Edited for looping.

Description: A golf ball being spun around by hand inside of a 16 inch diameter metal siv pan.Edited for looping.

Description: A US quarter dollar coin being spun around inside of a porcelain bowl by centrifical force. It has a fine grinding or sliding sound and modulating doppler effect. Edited for seamless looping.