Adaptation of a Nerf gun to enable participation in ball games in PE lessons in a school for students with physical disabilities. Due to limited hand/arm function, it is not possible for some students to throw a ball. A modified Nerf gun with the corresponding arrows is to be used for this purpose. The Nerf gun has been modified so that it can be triggered by a jelly bean button. A servo motor was installed for this purpose, which is attached to a 3D-printed holder. A 3D-printed part inside the Nerf gun has also improved the firing options. A holder for the Nerf gun was also printed.