Our countertop was FILLED with spices that we just didn't have space for in our traditional spice rack. So, I made these: hexagonal “nodes” that clip together to hold spices. Each side of the nodes contains a small notch that the clips hook into. Each node has a hole in the back so you can anchor some of them to the wall. 

I used an extra long Phillip's screwdriver to attach these to the wall. I used ¾" head screws and no anchors, and it holds very well. Your mileage may vary based on your wall.

Here's a wonderfully drawn diagram of how I put mine together for maximum efficiency. 

This is the pattern I used. Removing the middle node of a ring of six gives you a hole slightly larger than the others. This is what I use to store bigger bottles (like Lawry's Seasoning Salt).

Printed on a Bambu Lab P1S. No supports, 15% in-fill, 0.28mm, matte white PLA. I recommend printing about three clips along with each node.