Note: this same method totally works with iPads, journals, iPods, computers, phones, etc!
What you need:
Fabric of your choice
Fleece or padding
Stiff interfacing (fusible would be best)
Closure of some sort
What you do:
1) Layer your Kindle (or other electronic device) on top of the fleece, on top of the interfacing, on top of the fabric (right side down).
Interfacing is the white layer
2) Cut a good inch around the Kindle, then trim down each layer so the fleece is the smallest.
I shifted the interfacing so the fabric overlapped evenly on all sides
3) Repeat the step above, but include a block or triangle of fabric and interfacing (not fleece) above the Kindle to eventually be the flap that folds over the case. NOTE: it would be a good idea to measure the piece you made above and copy it, so they match up in the end.
4) Glue the fabric over the edges of the interfacing (or fuse them together).
5) This would be a good time to attach your closure except I was dumb and didn't :/
6) Glue down another piece of fabric on the other side of the flap (so it looks pretty on both sides).
7) Glue down some fleece on both pieces.
8) Google how to do a blanket stitch, and "sew" the two pieces together while watching Modern Family and New Girl.
9) Sooo pretty!!