Ive tried inhaling helium before where it makes your voice all squeaky. Today, after i got my pureshield argon, i thought to myself why not tryit with argon making your voice deeper as it is inert and the effect should last longer than helium as its heavier than air. I found this http://everything2.com/title/Argon and thought why not give it ago. anyone tried inahling argon before for fun??