I have definitely found the next item on my wishlist: the IconSpeak, an ingenious T-shirt featuring 40 universal icons for communicating across language barriers.
As the inventors recount in Bored Panda:
“Many times we were confronted with a language barrier that was only to be overcome by drawing signs, symbols or icons on a piece of paper, map, or into the dirt”, explain George, Steven, and Florian. “We thought it would be great to have an essential set of icons with you, permanently, so that you could just point on whatever you need – and people would understand. Soon the notepad was pulled out again and we started listing more or less essential icons that would have been of great help during not just ours, but basically anyone’s trip”.
Here are some nifty demo photos of the shirt in action: