Harp or Kinnor
This GIF animated harp on a sea of glass, represents a Kinnor or harp.
Revelation 15:7 describes a harp on a sea of glass mingled with fire.
In the Bible, the word for Kinnor is often translated as
Kinnors are a type of ancient Jewish stringed instrument,
mentioned in the Old Testament forty two times.
Hear Music button to hear the sound of a harp.
The harp music was downloaded from WikiMedia commons, then shortened for this animation sequence. Attribution for the harp music follows. TudorTulok at English Wikipedia [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
The Kinnor was modeled, mapped, and rendered with 3ds Max.
And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, and over the number of his name, stand on the sea of glass, having the harps of God (Revelation 15:2 KJV).