You can also support the Caribbean Bone Marrow Registry by starting your Amazon shopping at smile.amazon.com, and selecting WORLD MARROW FUND as your charity of choice. AmazonSmile is a simple and automatic way for you to support us every time you shop, at no cost to you. When you shop at smile.amazon.com, you’ll find the exact same low prices, vast selection and convenient shopping experience as Amazon.com, with the added bonus that Amazon will donate 0.5% of the price of your eligible AmazonSmile purchases to the World Marrow Fund.