Got in a fantastic cheapo $11.99 case today and I love it. Thin like the Caudabe Sheath, frosted hard transparent back like the Caudabe Synthesis, perfect buttons like the Rhinoshield Solidsuit & Otterbox Symmetry and a silicone feel like the Apple silicone cases. This case fits the phone perfect, asymmetrical cutouts, lanyard hole cutout on the side and a great feel in the hand. Even the transparent back has that silicone feel like the sides.
I also believe the buttons are removable like the Symmetry but will have to check this after I remove the case. Might order a few more colors just to swap button colors. The grip is good but maybe a little slick. Damn, this is a fine little case. I like it a lot but your mileage may vary. It's called MKOAWA Protective case on Amazon.
Some pics for your viewing pleasure.