A nozzle assembly has a main body that is hollow. A hose connection is formed on the main body to receive a fluid. A stem extends away from the main body, and the stem is hollow. A tip is formed on an end of the stem, and the tip has a fluid outlet. An extension member extends away from the main body. A balloon retainer is connected to the extension member. The balloon retainer has an opening facing the fluid outlet. The balloon retainer is shaped so that inflation of a balloon to a greater inflation pulls a neck of the balloon off the stem to a released position so that the balloon flies off the stem.