As with traditional tangibles, kickable application designers will typically create their own custom kickables. In the shown chemistry exhibit, for example, kickables are used to represent different types of atomic nuclei.
At the same time, many applications will benefit from reusable kickables. The visitor in the above Figure 1(a), for example, starts a tutorial video by kicking the knob of a kickable switch from play to pause. To support application designers in creating kickable applications, we implemented a toolkit of five kickable sets with a total of 16 reusable kickable widgets. Each set explores a different design principle (e.g., different mechanical constraints).
We expect application developers to pick one set, depending on their application requirements.