Here’s a bright idea that’s sure to be the light of your next branded promotional campaign — a coffee mug that glows in the dark. Made of ceramic material, these 11 ounce capacity mugs have a wide, ear-shaped handle. Add liquid that is greater than 65 degrees to make your logo appear. What a fun way to enjoy all of your favorite hot or cold beverages. Available in red, blue or black. Add your school, sports team, organizational or company logo or message to customize.