Message Tape. Such a terribly nerfdy cool way to communicate. Stick the tape where you need it, then use the supplied black marker to black out panels to make letters which form the message. Yes yes, of course you could use the marker to just write on some blank white tape, but where’s the FUN in that, eh? Or the profit? From £5.00 a roll.
The tape can be used to label boxes when you move house, to impress your date by re-naming entire streets after her or him within minutes, to put up efficient signage system where no printer is at hand and to teach kids how to spell, and help them to express themselves in a convenient, creative way. It works in multiple languages and therefore is culturally independent.