M8 washer-operated Bottle Opener

I spent my last penny, so I needed to (p)improvise this thing :)

No seriously, the penny is the most expensive part of this bottle opener, so I decided to reduce its cost drastically.

Well, actually, I simply didn't have any US coins at my disposal and even a penny makes for a pretty bulky bottle-opener, so I decided to use what every Mendel hacker has at least a few kilograms of: M8 washers I shaved of a few flats for this design to be printable in 9 minutes on my Ultimaker at 100 mm/s (0