Nothing groundbreaking here, but at 350g or so of (Sunlu White PLA+) filament, it's a 1/4 the price of even the cheapest version on Amazon. A simple wall-mounted vertical file/paper holder, in my case for children's construction paper. Keep things accessible neat and tidy and avoid your kids having to grab the color they want from the bottom of a precarious stack. Shown here mounted on the side of an IKEA Trofast organizer with #8 x 3/4" screws. (probably could use double sided foam tape or 3M command strip material).

Scaled to fit within the print volume of my Qidi Q2 (height limited) but sufficient for holding US Letter size paper. Have included the Fusion file in case you want to modify to fit A4 etc.