This is a fully customize-able microscope slide holder created for the class EE 4777 at Michigan Technological University. Enter in your slide dimensions and number of slides you want it to hold, then print away.

This slide rack is intended for keeping microscope slides secure while in an ultrasonic cleaner. Everything from the height of the handle to the size of the slide to the number of slides can be customized to fit your lab's specific needs.

The customize-able SCAD files can be found here and here: 

http://www.thingiverse.com/thing:518915

http://www.thingiverse.com/thing:521814.