Once a person gets too comfortable doing something, bad habits can form that wreak havoc on their health in a variety of ways; the Pleasurable Troublemakers hope to combat that. It relies on annoying its user until he or she starts to make the better choice.
Created by a team of students from the Folkwang University of the Arts, who were advised by Marc Hassenzahl, the Pleasurable Troublemakers is made up of a number of clever devices including the Keymoment, Forget Me Not, Never Hungry Caterpillar and Chocolate Machine. The first, Keymoment, is a dual-ended key rack that holds a bike lock key on one end and a car key on the other. Every time the latter is chosen, the bike key falls on the ground.