Bye-Bye, Thumb Sucking is a 1995 Muppet Babies storybook featuring Baby Piggy. Baby Piggy has been sucking on her thumb since she was born. Nothing seems to work in helping her to stop. Nanny tried putting bad tasting flavoring on her thumb, but she kept sucking, even when her thumb was sore. Then one day Baby Kermit threw a ball at Piggy, and she couldn't catch it because she was sucking her thumb. She realized then all the fun she was missing out on by having her thumb in her mouth, and she quit sucking it from then on.