On NPR this morning was a bit about this:
You can read more and hear a tune played here: Leaf Player : NPR
He has one arm, and plays a leaf.
And he’s good! 
Very cool! Anyone know how to actually do this? I can’t figure it out from the pictures.
Carlos gets by on $25 to $30 in tips, plus the $60 a month he receives from the government. On this tiny sum, he has raised four daughters and built a two-story, cinder-block house – painted bright green, and planted in front with Easter lilies – on the outskirts of the city.
We sure like to complicate our lives in the part of the world where I live.
I think the leaf is used like a reed, similar to the way I can blow one shrill note on a blade of grass, but much better.
Dave Para (great musician with his wife, Cathy Barton) plays the leaf. Since he can’t always find the “perfect” leaf, he has a piece of green plastic that is used for down-spouts that he cut into a leaf shape and keeps in his pocket at all times.
It’s like playing a blade of grass - he holds it between his thumbs.
He usually plays “Colonel Boggie’s March” on it - and Cathy just looks at him and cracks up. Especially at his facial expressions at the high parts.
That is just amazing. I’m just off to pick a leaf to have a go.
By the way, I have several hundred thousand English ivy leaves in my garden and I’m putting them up on eBay if anyone wants one. Warning: they won’t be cheap. Especially the variegated ones, which command a premium due to the increased street cred you’ll acquire by being seen with one.
Ivy leaves are somewhat poisonous by the way. Blow 'em but don’t chew 'em!
I assume that there will be a sound clip to display the playability.
Naturally, and a very expensive tutor book with CD and specially-tuned leaf to follow. And, when I’ve taken all your money, a one-way flight to an undisclosed South American destination. Watch this space! 
That advice could apply to harmonicas too.
I’m only interested in the ones with the visage of Jesus, Mary or some long forgotten Saint (Like Christopher or Elvis) glowing brightly upon their fuzzy features.
How dare you insult religion! Elvis will never be forgotten!
elvis who? 
That’s incredible.
But … but … don’t littlelambseativy?
djm
I’ve been able to get a range of about three full steps with a wide blade of grass or a narrow leaf using two hands. Like Missy described it’s between the thumbs.
I’ve tried googling for more info on the one handed technique with no success.
That’s real cool. Thanks Cranberry.
Costello, you wally. 
Yes, and as I understand it, akid’lleativytoo. I cannot recommend this to non-ruminants.
Elvis has left the building.
You’re very welcome.
I’m slightly astonished to see 2 pages in just a few hours.