Flintstones - Betty Rubble Costume From a T-Shirt By giannyl in LivingHalloween22,856126Save PDFFavoriteIntroduction: Flintstones - Betty Rubble Costume From a T-ShirtBy giannylwww.GiannyL.comFollow More by the author: About: Learn how easy is to design your own clothes! The best Do-it-yourself videos on the web! Join me :D More About giannyl » Here is an easy way to turn a t-shirt into a Betty Rubble Costume!