From the Ty Beanie Babies collection.
Plush stuffed animal collectible toy. 
Mint with mint tags (with heart & tush tags). 
Approximate size: 8 inches. 
One of the Unicorn style TY Beanies. 

Inside the tag reads: 
Once upon a time so far away
A unicorn was born one day in May
Keep Mystic with you, she's a prize
You'll see the magic in her blue eyes!

Birthday = 05/21/1994