It's a phone sleeping bag with a button and elastic loop fastening!
1. Fetch some wadding and two contrasting fabrics, enough to wrap around your phone once - there will only be one seam down the back. Essentially you will be constructing a quilted tube.
2. Cut the fabrics to size (centre a motif on the outside fabric if you like) and make a wadding sandwich. I free embroidered the cactus motif - this will become the front of the case.
3. Trim the outside fabric and wadding from the top edge of the quilted oblong sandwich leaving the backing fabric longer. This is then turned over and used to seal the top edge of the case. Hand stitch in place.
4. Fold the oblong in half right sides together - you're about to sew the back seam. But first grab a length of elastic (about 12cm) and stitch the loop firmly in place to the right of your intended seam line.
5. Fold the the oblong in half again and sew this back seam, making sure it's a snug fit for your phone.
6. Now you have a tube with the elastic loop in place, trim away the excess seam fabric on the loop side. Trim the other side of the seam enough to fold under and cover the loop. This will lie flat like a french seam inside the phone cover and look very neat. Hand sew this neatened seam in place.
7. The last thing to do still with right sides together, is sew the bottom seam making sure the quilted motif and loop are centred.
8. Now turn the case right side out. Voila!
9. Finally dig about in your button stash for a suitable button. I chose an 'almost sombrero' early plastic brain protector. Sew the button into place.