This is a Honeycomb Wall Mount for my Magnetic Dog Poop Bag Holder.
It uses 6x2mm round magnets (these for example), the same as the popular Gridfinity system, so you might have some at home already. The magnets are press-fit, so no glue is required. If you want to change the magnet dimensions, you can do so in the Fusion 360 File.
Printed with: