probably the most easiest and cheapest case to make. all you need is a plain transparent case, print out any pattern and cut it out to the shape of your case (don't forget the camera hole) simple and you can customize it to your liking!
How to Turn a Cardboard Box into a Cheap DIY Smartphone Projector
Turn Your Phone Into a Projector. Get an old shoe box cut a hole put a magnifying glass in it put your phone however close or far you want to make the picture on the wall big or small And watch whatever movie you want ;
Best Sewing Projects to Make For Girls - Easy DIY Phone Charger Holder - Creative Sewing Tutorials for Baby Kids and Teens - Free Patterns and Step by Step Tutorials for Dresses, Blouses, Shirts, Pants, Hats and Bags - Easy DIY Projects and Quick Crafts I