ATM Any use for an 8" F3.6 mirror?

[Dave Strout <dstrout@linuxfoundary.com>]

If anybody cares, there are some 8" F3.6 mirrors for sale on ebay:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2136085212

Specs are:
8"Mirror
f=750
power=6
surface accuracy=1/4 lambda
Full Coating: al+sio
scratch-dig=60/40
chamfer 1x45'
clear aperture 8inches = 203mm
focal length 29.39inches = 750mm
focal ratio f/4
mirror thickness 0.75inches = 19mm
thickness/diameter ratio 1:10.5

I bid on one, but didn't get it, and really need to stay focused on the 
12.5" anyway, so I thought I'd point them out to others who may care. 
 I'm curious, what could you do with them, besides make a 30" newt?  Any 
creative ideas?

dave.