There are several stories behind this one. From Wikipedia:
The griffin (or gryphon) is a mythical creature with the body and tail and back legs of a lion, and the head and wings of an eagle, and an eagle’s feet as its front feet. As the lion was traditionally considered the king of the beasts and the eagle was the king of the birds, the griffin was thought to be an especially powerful and majestic creature – the king of the creatures. Griffins are known for guarding treasure and priceless possessions.
My friend found the ear ring, and I thought it would work well in this, to make his eye(s) glow. I know a real life Griffin and hope with all my hope and all my intention that he finds his own wings in 2013.