For Eco-Friendly Baking: Amazon Basics Reusable Silicone Baking Cups If you love to bake muffins and cupcakes, you'll like using these Amazon Basics Reusable Silicone Baking Cups ($8 for 12). They're a cost-saving and eco-friendly alternative to regular paper liners. Image Source: amazon.com Amazon Basics Reusable Silicone Baking Cups $8 from amazon.com Buy Now