They say the best camera is the one you have on you. I apply the same logic to bottle openers: the most desirable is the one you can find when you need it. Between wine keys and can openers and dedicated tools, I probably own seven or eight different levers that can snap off a bottle cap, and they all seem to be completely AWOL when their services are required.
So, I’ve always been a big fan of wall-mounted openers – the kind you’d find on the side of an old soda machine. You can screw them directly to the wall, but Reddit user ComradeNorgren came up with this magnetic option, which mounts the bottle opener to a block of hardwood, and recesses magnetics inside to 1) catch the bottle caps and 2) attach it to your fridge or other surface without need for hardware.
Check out his Imgur tutorial on Reddit: Here’s a How to on Making a Bottle Opener with a Magnetic Cap Catch