I wanted a 1x1 holder for my fabric and pinking shears, so I made one! I personally didn't add in magnets and as a result, it's a little bit tippy if it's by itself and you drop in the scissors instead of placing them in, but sandwiching it between other things seems to stabilize it enough for me. The slots are 13mm(W) x 24mm(L) x 79mm(H) in case you want to measure to make sure yours will fit!