Embrace the humor of office life with this fun and friendly color-changing mug that's sure to be a hit no matter who you're tipping your hat to! This "I'm Not gay but $20 is $20" 16oz mug has a dynamic dual personality. When it's cold, the phrase stands out boldly on a crisp black background. But when you add hot liquid, watch as the text reveal "But $20 is $20! Makes a perfect gag gift for men or women.