Using a mylar (foil) balloon is actually safer for two reasons. First, it is easier to control how much helium you get. Second, there is no talcum powder inside the balloon.
Using good, fresh eggs should not cause any problems, as you keep this recipe in the fridge when not in use. My mum has made this for many years, she...
Use a turkey blaster or a syringe on the end. Anything that can pull a slight vacuum on the end should start the flow of water. Make sure that there...