This is my design for a collapsible Stand for The Amazon Kindle 7. It's old, I know, but some may still have it, and others may be able to adapt the design for other newer versions.
Folds flat without any edges that may catch on other items when put in your bag/etc.
***This model was "designed by me, and uploaded by me" to Thingiverse back in Dec 2018, so lets not try to claim copyright over something you downloaded off of me