In the 50s they were called Flav-R Straws but they disappeared some time in the early 60s. Today a new version is available called Magic Milk Straws. Each plastic straw has flavored beads to change the taste of the milk when sipped. All you need is a glass of milk and some "pucker power."
Magic Milk Straws are lactose and gluten free. This means anyone can have fun drinking their milk -- whether it’s soy milk, rice milk or lactose free. And no refrigeration is required, so you can pack Magic Milk Straws along with you anywhere.