Yeah i think that other people have done this before but there are so many people i dont know which one is the original. These tool holders dont use screws the just slide straight onto the frame. Which is kinda cool.
Flush Cutter Holders
This tool holder is designed to mount in the orientation depicted below, but for extremely tall prints may need to be removed as it will come in contact with the x-axis rod. You may need to fiddle around with the orientation for printing.
Increase thickness and filleted more edges.
Image here is rotated to the left 90 degrees for some reason.
Screw Driver Holder
This tool holder designed to mount with the hole vertical/perpendiicular to the ground. You may need to fiddle around with the orientation for printing.
There was an error with the thickness and length which I improved. Also filleted the hole around the top more to make it easier to slide the screw driver in.