Guys, why are we being so negative here? Honestly, yes this seems, by the methods we are thinking, to be too impractical and expensive...But why should we try to stop someone from being creative? If we stop him from thinking about it now, the chances of him figuring out a solution are 0; however, if we let him ponder about it, there is a chance, even if it is just slight, that he will find a solution to the problem and fool the pants off of every single one of us.
So here's what I'd say:
Streetking,
What you are thinking about doing is something that currently, no one has been able to do inexpensively and live. While not impossible that you will find a solution to it, it will be VERY difficult. So if you just think this is a "cool" thing to do, move onto some sleight of hand because that can be "cool" too. However, if this idea seems to be stuck in your head, something you truly and honestly think you will do (feel free to lie to us and tell us you will, just don't lie to yourself, and if you do not think that you will do this effect, do not even bother thinking about it anymore)...well, then go for it! But really, invest all the time and energy you have towards finding a feasible solution; otherwise, it just won't happen.
Sorry that I'm basically contradicting everyone here by saying that he should go for it. But honestly, why should we hold back passion and creativity? The worst that will happen is that no solution will be found and nothing is lost...But if a solution is found...Well, you know.
Best of luck to you my Creative pal,
~David