Every so often a brilliant and clever idea comes along...

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There are plenty of ideas like this, see;

I remember on from years ago that attached to a drill, that kept your drill square to what you were drill, it was a a spring loaded cup like affair, and the cup also caught the drilled shavings. Cant find anything like to show here maybe someone remembers it. I wouldnt be surprised if it came from Ronco.. ;)
It is clever, but I think it's a little limited in that it relies on a flat reflective surface that extends a number of inches around the drill. I used to (basically) drill holes for a living circa 1986, when I was working for a military aircraft manufacturer, doing air frame assembly...we had bushings that fit into a small aluminum fixture resembling an inverted short little dixie cup with 3 small "legs" to maintain perpendicularity to the surface, however the surface we were drilling into was frequently subtly curved (the external skin of the aircraft), so depending on how you rotated the fixture would change the angle...most of us ended up grinding off the little legs and it seemed to work better. Not claiming anything here, just a novel little anecdote about drilling holes. ;-p
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Well that is pretty clever. Make your own bullseye. Too expensive for my blood... I'll probably wait for the $20 knock off on a Chinese commerce site.
Very similar to my line of thinking. Though, I'm just holding out for the price to come down and not just be sold in pairs.