Frameless Hanger for 3/16" Foam Core Prints

So you've got some artwork mounted on 3/16 inch foam board, but you don't want to bother with matting and framing or you just prefer the minimal look. Here's what you do:

1. Print four of these hangers.
2. Slip them over the corners of your foam board.
3. Thread them together with string and tie snugly.
4. Display!

Partly inspired by Greg Fishback's frameless picture hanger. Designed in Onshape. View or copy the public document [Frameless Hanger for 3/16" Foam Core Prints](https://c