One of my fondest memories is when I was 16 or so. I bought a 3D mouse (it’s like a mouse that you can control by waving it around) and taped it onto a hat that said Marines. Then I immediately went into CS: Source and got ready to annihilate everyone.
I think I played about the same, but it would’ve been funnier if I’d gotten creamed.
The theory was that my head is much more precise than my hands, so using a combination of both should improve my aim. It might sound like you’ll end up looking left and trying to see out of the corner of your eye, but in practice the two-mouse system ends up working out. I’ve always wanted to revive the idea for modern times, but you end up looking like a huge dork with a dildo glued to your head. I like that style though.
Your idea sounds way cool. You should make it!