Olive Beaver mascot costume character dressed with a Baseball Tee and Cufflinks from our Beaver mascots. Let us help you bring your favorite characters to life. Come and discover our collection of costumes and accessories and make your next costume party an event to remember.. The Olive Beaver mascot costume character dressed with a Baseball Tee and Cufflinks will be perfect for your Beaver events. Many sizes available, premium quality, fully customisable with texts, logos, colors.