Have you ever felt left hanging, wanting to fist bump someone after an accomplishment? What happens when no one is there to provide you the relief you need? Well, one Instructables user created the solution, that's if you have a laser cutter and 3D printer. The robotic fist bumper is here. Further details on the creative device can be found here:
http://3dprint.com/7998/fist-bump-3d-printed/

If you do decide to make your very own fist bumping machine, please let us know how it turns out. Below you will find a picture of the finished fist bumper in action: