Show Your Support for Blood Donation with Be Cool Give Blood T-Shirts. American Red Cross Offering Exclusive Snoopy T-shirt for coming to donate blood. Be Part of the Movement with Be Cool Give Blood T-Shirts. Get your hands on our Be Cool Give Blood T-Shirts and make a statement for a great cause. Be Cool Give Blood Redcross Shirts are also available in hoodies, long sleeves, and sweatshirts. Order now and help spread awareness about blood donation.