An example embodiment of an apparatus includes a fitting configured to couple to a pressurized supply of fluid. At least three branch assemblies extend from the fitting. Each branch assembly includes a tube coupled to the fitting at a first end, a balloon comprising a neck portion having a second end of the tube inserted therethrough, and a fastener removably coupling the balloon to the tube. The fastener is configured to permit fluid from the pressurized supply of fluid to pass through the tube and into the balloon and to automatically restrict the fluid from exiting the balloon through the neck portion upon decoupling the balloon and fastener from the tube.