Twinkle Eyed Ponies were a new addition in Year 4 in the My Little Pony line. They had plastic jewels for their eyes and multicolored hair. The jewels were faceted and were also coated with an iridescent sheen to give them extra sparkle.
Twinkle Eyed Ponies were only made as adult ponies, but some of them had baby ponies released in the First Tooth Baby Pony line. These baby ponies did not have sparkly eyes like their mothers.