3D Print- Wave Card Holder

I'm taking a couple of drafting classes this semester in college and both at the same time assigned stuff to do with 3D printing. In my 3D CAD class we were requested to design some business card holders then choose one to be made with the 3D printer.

Here is the one I decided to have printed, my wave design. The others were a spherical head, and a treasure chest. I personally just love to look of the design of this one overall though.