Floppy Disk Cabinet T-Brackets and Drawers

I was inspired by Amplivibe's Floppy Disk Construction Kit (http://www.thingiverse.com/thing:134807) to make a little shelf system using the pieces provided. However, there was no way to insert disks in the center of the box. So, I designed some T-shaped brackets to do the job. One pinches both sides of the disk, the other allows items to slide easily over the top of the disk and the disk itself just rests in place.

The shelves are based on the design of the Small Parts Cabinet from falconma