IconCal by Goodwicket L.L.C.

The calendar for people who hate using calendars — IconCal is a visual, drag-and-drop calendar that uses icons to represent events and appointments. Its simple and intuitive interface allows you to schedule an appointment in seconds with the flick of a finger!

IconCal is based on the idea that a picture is worth a thousand words. Instead of writing a paragraph about what you have scheduled for tomorrow, simply drag an appropriate icon there to represent that event. You can even make your own icons by using your device’s camera or using images already on your device!

Developer Website: http://www.iconcal.com