A hook with a captive magnet design. Inside this model there are 2 holes for 6x3mm magnets. During the slicing process you can add a pause at the top layer of the internal magnet container and insert the magnets. After this, the printer will continue to print across the top of the magnets to hide them inside the model.

Watch me design it here: https://www.instagram.com/reel/Cp7Xy_HMfGJ/?utm_source=ig_web_copy_link