The A.C.Camargo Cancer Center in São Paul, Brazil wanted to make the brutal experience of chemotherapy easier on children. The ad agency JWT responded by designing IV bag cases labeled with the logos of four DC superheroes.
But that's not all. It also created comic books showing the four heroes getting ill and needing treatment from these cases in order to regain their health and superpowers.
At the link, you can watch a video showing the cancer center using these superheroic tools to encourage young cancer patients.