Check out the following video featuring a real-life working Iron Man laser wielding gauntlet.
It has working parts including red dot sites and a laser that actually burns.
Gives a whole new meaning to "you'll shoot your eye out."
Full metal gauntlet, runs on 1x 18650 plus 2x 14500 Li Ion cells.
2 blue lasers on board, 1.2W each, plus 2 4mW for aiming.