Looking for a nostalgic T-Shirt? Here’s a top pick for you: the Ripple Junction Schoolhouse Rock Knowledge is Power Logo Group Adult T-Shirt, a nice heather light blue retro T-Shirt by Ripple Junction (officially licensed). A great feature we really like: it is machine washable. This product enjoys tons of enthusiastic reviews on Amazon. Hence our recommendation. It will be a great addition to your wardrobe. You can be nostalgic and enjoy the perks of modern life. Check the price on Amazon!