I get sick of making spaceships easily. And yet, I suck at doing people, tools take all of four seconds, and I have all the cars I need. And so once in a while one of these comes along...

Jes' a laser rifle. Sort of a sharpshooting weapon, runs on an SLR system- the top bulb's a targeting laser, determines where the shot is gonna land, when you've got something sighted you pull the trigger, a special mirror flips, and the big sucker in the back fires. Silent, invisible on clear days, 100% accurate as far as you can see the pinpoint laser (no scope), fry your head clean off.