I made these for my keezer. The handles have a space in the bottom to glue in a 3/8"-16x1.13" coupling nut. The labels use 10x2.6mm magnets. The drip trays and spacers also use 10x2.6mm magnets and also 60x10x3mm bar magnets. My taps are spaced exactly 6" apart so my spacers are designed to make the drip trays exactly that far apart. You can get little tin trays from a grocery store like you'd use for a bbq drip tray.