mini quad motor pods
thingiverse
Here are some pods/bumpers for the bottom of 8.5mm mini quad motors. I made these to hold the LEDs and provide some bounce protection to my motors when I moved my Hubsan X4 h107c electronics onto one of the models included in: http://www.thingiverse.com/thing:431290 Ultimately it will take a little dab of hot glue to ensure they don't fall off in a crash.
Download Model from thingiverse
With this file you will be able to print mini quad motor pods with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on mini quad motor pods.