As you probably know, most cases for handheld devices aren't very comfortable to hold for a long time. This is a very comfortable DIY case.
Step 1: Gather Your Supplies.
1. duct tape of your choice
2. card stock or other thick paper
4. Kindle or other device
Step 2: Cut Out This Shape.
Make sure that it is a little wider and longer than the Kindle.
Step 3: Wrap the Paper in Tape of Your Choice and Fold in the Corners.
Make sure to cut a slot for the charging port and on/off button.
Step 4: You Could Also Make a More Protective Case Like This One, by Having a Solid Backing.
Thanks to clintonmc for the dragon skin idea. Here is the link: https://www.instructables.com/id/Removable-Dragon-Skin-Bottle-Cozy-from-Duck-Tape/