Plastic Fantastic Conventional wisdom will say that plastic ukuleles are cheap, low-quality substitutes for “the real thing”. Well, it's time to kick conventional wisdom out the door Built unapologetically from plastic, the sound quality of these ukuleles will blow you away, and their durability will make them Keith Richards' instrument of choice after Armageddon hits. These ukes are perfect for rainy festivals, cramped overhead lockers, moody teenagers, and ukulele teachers working with young children.