Have you ever seen that TV commercial with the closet space-saving “Space Triangles”? They are basically hooks that fit onto a coat hanger and allow you to nest several items (shirts, coats, sweaters, etc.) together in your closet thereby using less space on your closet rod. They seemed so simple, I decided to design my own rather than paying $0.50-$0.70 each for way more than I would ever need.
I used BL Tough PLA with the standard “0.20mm Strength” setting, and it seems to be plenty strong. It takes about 30 minutes to print one, and no supports are required.