Forked Tongue Harmonica

Dan's getting in to the harmonica. Overblows, overdraws, and all that jazz. One of the most fundamental techniques for making chords on the harmonica is the "tongue block" where you plug a hole or two with your tongue and pass air through adjacent holes. Dan was talking about it and said (with a little encouragement from me) that if he got to a certain skill level that he'd consider getting his tongue split. You can control each half of the tongue individually and could thus play chords on the harmonica that nobody else can! Ever think about that?