Damn this is cool summer wear.

The Messaging Cap.
This floppy hat has a programmable LCD in the front panel above the wearer's forehead. Up to 10 messages can be programmed to scroll by, such as: "Go team!" or "Score again!" Individual messages can be programmed up to 250 characters. Select one, or let all ten messages scroll across. Use the entire alphabet as well as symbols and numbers. The display is extremely thin and lightweight, and is removable for hat cleaning. Four buttons on the top of the display control all functions. Runs on a single long-life lithium battery (included). Combined 895-character limit for all messages. Cotton hat and plastic LCD display. One size fits most. In Khaki or Black.