Infinity Card (FULLY CUSTOMIZABLE)

Infinity Card: A Customizable, Fidget-able Greeting CardMy older daughter and I initially designed this as a birthday card for someone in her class, but it was such a hit (it has edged out dragons as the model I've had to print the most copies of…) that I decided to develop it into a polished form and make it more broadly available.  Almost 600 lines of OpenSCAD and numerous test prints later (plus more time than I ever thought I'd spend learning the intricacies of the SVG standard), her