A simple wall mounted key and wallet shelf I made for my home office, plus a second for my bedroom. I designed it to hold three set of keys, plus a shelf that'll fit a standard trifold wallet. There are two recessed mounting holes, which are sized for standard #10 screws [drywall/construction style with a tapered head] to fit flush. I had an excess of HardiBaoard Screws laying around, so I used those run directly into a stud. Note: One screw in a stud should hold it well, but there are two in the design to provide extra support in case you're limited to using drywall anchors. I also added a version without the screw holes, for use with 3M VHB mounting tape.

Example printed on an AnkerMake M5C-B using Hatchbox BlueGrey PETG with the following settings: 0.4mm nozzle, 0.25mm layers, 50% triangle infill, no supports, 200mm/s print speed, 5000mm/s acceleration, cooling on. Used ~128g of filament and took 3hr13min.