I travel to Pokémon and One Piece trading-card events and my current display case doesn’t do the cards justice. I need a digital 3D model for a portable holder that will show top-loaded cards neatly on the table, then break down just as neatly when the show is over. Here’s what I’m after: • A stackable tray system—each layer should interlock cleanly so I can build upward without wobble. • Slim magnets along the edges so the trays snap together and stay aligned. • Interior slots sized for standard top loaders plus a little extra tolerance for penny sleeves or semi-rigids. • Everything designed with PLA/ABS printing in mind so I can run it on my own FDM machine later. Once we shake hands, I’ll send the exact card and loader dimensions as well as the magnet diameters I’ve already picked out. I’m happy with any mainstream CAD workflow—Fusion 360, SolidWorks, Blender, or similar—as long as the final deliverable is a clean, watertight STL ready to slice. If you want to include STEP files too, even better. I’m on a tight timetable and would like the first draft as soon as possible, so please be confident you can turn this around quickly. We have added a picture oh what the ones we saw looked like