I tried to make a phone "wallet" case. I used the inside of my old one (what you press your phone into), cardboard from a an old box and some leftover vinyl flooring. I originally wanted to glue everything but ended up stapling some bits. these pics where hastily made and don't do the thing justice.
Let's see how well this holds up (I seldom have it in my pocket so that helps).
It's an okay first attempt, the staples make it look not the best. Do you have a heavy duty glue you could use instead of staples? That would give it a cleaner look.
It would look cleaner, but the glue types I have thought of either would not be very compatible with the material or not be strong enough given the fact that usage puts strain on those bits. And I kind of like the style.