About this 3D model

So i have been dreaming of this design for a while, but certain parts are still left to conquer. Hopefully someone out there can help. I have provided the OpenSCAD model in order to speed things up. Its \\"parameterized\\" so you simply change variable values and you get a whole new container! The concept here is that the object is printed with the right size and spec to your phone. You then cut and sew together an elastic band. Let it be known that i do not have any real prior experience with sewing, so if i can do it, you can too. :) Potential Future Mods: Round mounting profile so its more comfortable to wear, walls that curve in to lock in phone, completely sealed case to protect from rain and spills. I look forward to seeing other peoples ideas! Click to see an album of the print and other detailed images: http://www.flickr.com/photos/cidvilas/sets/72157623863202831/