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These compliant mechanism stands feature a cool self-interlocking design that lets you open the clip by pressing down on the sides. These are great for holding photos, signs, menus, or other thin objects.

30mm and 60mm wide versions included. You may be able to scale slightly as well.

I printed mine with PLA at 100% infill. PLA will lose clamping strength if left in the open position for a long period of time, especially at higher temperatures, but it's worked fine for holding up some of my cherished polaroid photos. ABS or ASA may be suitable options. Leave a comment if you have success with another filament!