Foam Core / Board Hanger
thingiverse
If you have photos or prints stuck to foam core or board and want a fast hanger, simply push one or two of these into the back side. Fast and easy to install, just touch up any rough edges with a file if needed. For big posters, I've used two of these with a wire in between.
Download Model from thingiverse
With this file you will be able to print Foam Core / Board Hanger with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Foam Core / Board Hanger.