Here's a good one for guys who are wrong-eye dominant. How about a gizmo that will momentarily shut off vision through the left eye so that the right hand shooter is only looking down the barrel with right eye when he takes the shot. I'm thinking you could modify a pair of old flip-up clip-ons so that only the lens for left eye remains, paint it black, hook a mini motor to the clip-ons with a remote switch so that left lens "patch" will flip down and cover the eye just before the shot is taken.

A more portable reloader would be nice to but that might be a bit more than a high school project.

I have often wondered how well a lighter-than-air decoy might work. A couple of dirigble deeks on tethers bobbing in the wind about thirty yards up would seem to me to be every bit as good an idea as flags and mojo deeks. There, I probably just made you kids millionaires!