Celtic Mood rings, from Sea Gems. 3 different styles Celtic Knot, Circle Knot, and Triskelle, or buy all 3.  Price includes Velvet pouch with draw sting, with the transcription Tír na nÓg (Land of the Young) and the claddagh symbols, Love, Loyalty and Friendship 

Each ring changes colour according to your emotions and will change colour as your emotions change.

Options, choose from 3 styles, or buy all 3, sizes 5.5 to 8 (US ring sizes) - also larger sizes are available for the Triskelle ring only, sizes 8.5 to 12 (listed at the bottom of the list below)

The following colours correspond to each emotion

sizes are from children (6-9 year old)  up to small adult sizes, 

size chart below, if not known measure with a thread or string to get the circumference,