Originally intended fo another purpose, stearing a wheelchair with just a ring of buttons behind the head, we designed big buttons, based upon a standard small button in a 3D-printed housing. Theey should be relative cheap, reliable and needed to be activated with a slight touch. As it turns out, they can be also used for playing games. Not as a arcade button, which would be also possible, but for the wheelchair driver. In this case, a version with a slightly harder button, but a better click-sound for activation was made... which leads to other ideas. But first: Instructions can be found here.