Milk Lock

Tired of co-workers "borrowing" your milk from the fridge? Now you can simply lock it.

I liked the design here: https://www.thingiverse.com/thing:2587666
But didn't like the fact the I need to print 3 parts for the cap and use bolts to hold them together.
So I re-designed it so it would all print in place as one part.

For the key I used 2mm nails but toothpicks should also work.