WaterAid "hope locker" by Proximity London

Proximity London has created a piece of kit that fits inside swimming-pool lockers, prompting users to donate £1 to WaterAid.

The "hope locker" touchscreen tells swimmers how long they have been in the pool and then works out the number of people to have died from drinking tainted water in that time – before asking if the customer would like their £1 deposit back or to donate it. Proximity and MediaMonks collaborated to create the lockers, which were trialled in Richmond, London, at the end of 2015. The agencies are still waiting to hear if they will get the funding to roll out the lockers across the capital. The campaign was created by John Treacy and Rob Kavanagh.