Under Shelf Hooks
thingiverse
A simple under-shelf hook I made for my trekking poles, I printed it at 20% infill but they are lightweight (1.8 lbs for all of them), if you are going heavier I would print at 50% or more.
Download Model from thingiverse
With this file you will be able to print Under Shelf Hooks 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 Under Shelf Hooks.