Children with names like Diva Thin Muffin Pigeen and Moon Unit could only belong to Frank and Gail Zappa. Who knew the unique baby name trend started in the '60s? What's even more bizarre than the name Moon Unit is when her father made news after offering the then-12-year-old birth control and her own flat. Needless to say, a unique birth name was just the beginning of the eccentricities when growing up with the Zappas as your parents. But these famous children didn't let their names get in the way of achievement. Moon Unit is a successful actress, and her siblings have had fruitful ventures in everything from music to children's literature.