Apparel & Gifts Browse our growing selection of shirts, hats, & drinkware by Goodrich Aviation and Custom Aircraft Builders. Apparel & Gifts Browse our growing selection of shirts, hats, & drinkware by Goodrich Aviation and Custom Aircraft Builders. Coming Soon: Sling Baseball Cap Sling TSi Flag Shirt Sling Formation T-shirt Sling Cardiogram Shirt Sling TSi Coffee Mug Sling High Wing Flag Shirt