This has to be a classic, I wept with laughter when I found this, but realistically, this is a very good idea, that could be used and adapted by all. The Indicatears fit behind the ears and are then activated via a belt/shirt clip attachment to signal your intention to turn left or right. They could be used by cyclists, or in a busy city centre. Here in Spain they should be compulsory especially for the women with shopping trollys who usually make a dead stop in front of you, then reverse taking out your ankles with the trolly and anyone else's in the vicinity.