Superman Bookends

Still bored, so I designed this Superman bookend. The art that rises above the Superman logo is designed to be left in the middle when you add books. Since I have not yet tested this design I'm open to suggestions to change the overall look and function. I still don't know a printer, so if anybody is interested in printing this design please get in touch with me. I'd like to post a picture of what you printed with credit going to you for your work.