OTF Utility Knife Holder
thingiverse
This mini otf is perfect for you pocket. Coming in at 10.6cm when extended. You can find a full size version HereYou will need a small rubber band and a utility blade. I used This one
Download Model from thingiverse
With this file you will be able to print OTF Utility Knife Holder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on OTF Utility Knife Holder.