5s case without camera hole?

I am new to apple iphones and am interested in getting an iphone 5s. I can't take a camera phone to work and want a case that will cover the camera so I don't get unnecessary attention. I don't intend to use the camera at work and if i wanted to take pictures, i would bring a camera...not a phone. Anyway, this rule is such a pain in the butt that I want to find a camera case without a hole in it so I can bring my phone to work during the week and be able to take pictures of the kids on weekends. Any suggestions for products that might fit my needs?