Rare Ty Beanie Boos include Kiwi the Frog, Goldie the Chick, Kooky the Koala, Buddy the Ghosty Ghost and Rosey the Unicorn. As of 2015, each of these Beanie Boos is valued at over $100. Generally speaking, retired and theme Beanie Boos are the most rare.
Ty released the initial set of seven Beanie Boos in 2009. Originally, they were offered exclusively in the United Kingdom, but in 2010 they were introduced in the United States. As of 2015, there are over 100 Beanie Boos in existence.
Beanie Boos differ from Ty's original Beanie Babies in that they tend to be smaller but have large eyes.