These are some under-shelf mounts for IKEA jars. I created two versions, one for double-sided tape and one for screws. I used the red 3m tape but it didn't hold due to the paint on the shelves. This is why I added the screw holes. The 3mf project files have the pre-cut pieces complete with snap connectors which worked well for me. I glued one side and aligned the connectors and it just snapped together and was as close to perfect as I could hope for. I included the raw STL files so you can adjust them to suit your needs in the slicer, or print as a single piece if you have a large enough build volume.