In attempt to be on the cheap this Christmas season I decided to make gifts for my father & brothers, plus I figure it'll force them to have good beer around.
It's one of the six simple machines, the lever.
I chose three different opening methods, two are one piece, one is of two.
One is made of square bar, one of round bar, and the other of the same round bar and a bit of quarter inch plate.
They work, I tested them, then attached a leather lanyard, wrapped them in a red shop rag and yesterday they seemed to be well received.