A necklace that detects an awkward moment of silence and plays a peppy upbeat (and likely out of place) melody that is /bound/ to bring a smile to one's face!
"When ads encroach upon your territory, warn them the old fashioned way!" A camera situated on your body that tracks the concentration of advertisements in the area. If it reaches a certain point a rattlesnake like sound is created mechanically to inform those around you of your displeasure.
A small box placed on a busy street. Occasionally the box begins sending out distress signals only to be calmed when two passerbys stand and hold it for 5 minutes.Prototype
A set of directional speakers embedded in a jacket that allow for high fidelity reproduction of sound. i.e. Projecting sound behind you “This is the police! … “ to scare a thief. Or Projecting a reminder in front of you.
A set of amplified speakers that will amplify the wearer's voice proportionally to how many people are holding hands together and speaking.
Amplifies frustration so it can be heard and seen by others.