Put your phone on the black felt, and mark the outline of your phone, but a bit bigger on the sides and bottom. On the top, make it about an inch longer so you can have a flap. ( Only cut the flap on one rectangle, I forgot to do that, until I started to sew)
Cut rectangles at random lengths out of the grey and white felt. Sew these on with with a fell stitch, and make sure it's visible, and a bit messy:)
Sew up the sides....
....Stick velcro on the flap so it can close securely andddd...
WAH-LA! You're finished. I hope you enjoy your stitched up little phone cozy! If you make this, this is probably pretty obvious, but I would really love if you posted your version! :D