You know, with that amount of technical skill, you could have changed the brake shoes and pads in your car. You could have fixed the washing machine instead of buying a new one. You could have installed the icemaker water line. You could have put a new mortise lock on your back door. You know, the one that keeps sticking and requires you to jiggle the key.
You could have fixed the X-Box eject tray that keeps sticking when you hit the disc eject button. You could have gotten your grandmother’s VCR to stop blinking 12. You could have cleaned your oven.
In short, you could have done something besides make a steampunk ray gun. However, that would have rendered you entirely unprepared for your Halloween steampunk cosplay party. Good call.