YouTube is priceless.
While that kid rocks that Johnny linked to, I found two guys that play the mando-banj-itar.
What a bunch of doofs. Not to mention with a cool name like that, it would be some Superhero instrument, but alas, it is just a mandolin and banjo and a guitar kinda glued close together.
Now that I am into my post, I don't even want to link to it cause they piss me off for lying to me.
Please, allow me to show you my new invention, the keybo-monit-desk-a-mouse!