Abstract: This is a balloon filling system or device that can fill one or more balloons at a time. The balloon filler is intended for use in water balloon activities, such as games, where many balloons need to be filled at the same time. The balloon filler can be attached to any source or filler. The balloon filler can also be attached to a stand, such as a set of legs or a freestanding or mobile container, with a set of wheels. Some versions of the balloon filler can be preassembled, while others can be sold as a kit, which a user can assemble into many desired arrangements or configurations. The balloon material and the filling material can be from many choices. It can also cover the toys attached to the system.