My fan is supported by stretched nylon fishing line off 4 screws mounted on the back of the cell. Pictures in this thread.
http://www.iceinspace.com.au/forum/s...ad.php?t=65290
Talk about cheap, quick easy and effective !! After I'd been fiddling round with foam rubber boxes, springs and what not. At 5 volts no vibration at all. The mirror rear is directly exposed to the airflow.