Slumber Party Barbie of 1965 came with her own "How to Lose Weight" book. One tip: "Don’t eat."
Sometimes a TV show becomes so popular that it spins off into other products like breakfast cereals.
The lives and livelihoods of these birds revolve around slamming their heads into things.
©2016 Mental Floss, Inc. All rights reserved. Mental Floss® is a registered trademark owned by Felix Dennis. mentalfloss.com is a trademark owned by Felix Dennis.