Re: Two saxes at once...
I've seen this guy in the Flint area named Bob Adado. (I probably spelled his last name wrong). He's a fantastic player. He sings, plays sax and trumpet, and uses background tracks. He does this bit where he puts on a big sombraro and plays 2 trumpets at a time. It's very cool!
Unfortunately, sax really requires both hands. I play keyboard, and I have tried to play sax and keyboard at the same time; playing keyboard with the right hand and sax with the left. It's nearly impossible.
My advice is.........learn trumpet if you want to do that! Great idea though!