Gridfinity block (1x1, non-stackable) for holding 6 USB A memory sticks with (or without) 4 MicroSD cards . Slots are arranged in staggered fashion so they can be easily picked from tray and wider sticks don't pose a problem. Slots will hold items securely upright but they have enough tolerance so that printer doesn't need to be expertly calibrated for printing.
There are standard magnet slots on bottom. I recommend using magnets with longer sticks (like in the picture) as the arrangement becomes top-heavy.
Easy to print. No supports needed. I used PLA, 0.4mm nozzle, 0.2mm layer height, 2 wall loops.
The author marked this model as their own original creation.