Is anyone else's kids into these? My kids are in love with them.
They're just packages of tiny toys and you have no idea what you are getting.
The girls have been watching videos of this woman, Tiffany Bliss. She basically opens and review toys. They love it. Not only does she open blind bags and describe them, she also dresses up regular Baby Alive dolls to look like specific characters (Disney, Monster High, etc), makes them play-doh food, and then discovers "surprises" in the baby's diapers. The surprises are usually blind bag toys that she has wrapped in play-doh. It's the most bizarre thing, but they think it's awesome.
Here's one of them:
https://www.youtube.com/watch?v=7hP3Uoo7v14
The girls have been asking for blind bags so they are now one of the good-behavior rewards on our calendar.