2023 Harley Quinn Square Calendar. Each month features cool comic-book style imagery of the famous DC female supervillain Harley Quinn. This wall calendar also has large monthly date panels where you can keep track of appointments, birthdays and make plenty of notes. Product Dimensions: 305 X 305 MM Official Harley Quinn Product Danilo is the leading publisher of officially licensed calendars, diaries, greeting cards, gift wrap and gift bags in the UK. We are a family run company that’s been operating for more than 40 years. Our licenses range from baby to adult. All the paper we use is responsibly sourced and we only work with suppliers and manufacturers that meet our stringent ethical requirements.