We have people who have, for example, taken the inside of the engine bay of an old car and tagged up different components within an engine, so that if you're stuck and you want to find out more, you can point and discover the information.
Por exemplo, há pessoas que pegaram no compartimento do motor de um carro velho e etiquetaram as diferentes componentes de um motor, para, se estiverem empanados e quiserem saber mais, poderem apontar e descobrir as informações.