For overnight flights. Instead of avoiding falling asleep on the person next to you, help to prop each other up!
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.
A pair of wearable overcoats that can connect to each other to create a private space with desired ambiance. (Light + Sound)
A bench that automatically elongates to accommodate additional people without seating.