This is a Customizable tiny square bracket to be used to rigidize anything you are able to attach to it.

Designed in OpenScad, can be customized in the OpenScad App or in Thingiverse Customizer.

// Open this file with OpenScad software (free and open-source) // http://www.openscad.org/downloads.html // Choose your parameters in the SETTINGS section // Press F5 to compile and see the resulting hook // Check your square in the preview window // If OK, press F6 to render // Go to : File => Export => Export as STL : choose filename and location // Save the STL file of your customized square