Every so often a  application comes around that really wows us.

3D Printing
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Every so often a #3Dprinting application comes around that really wows us. This @Thingiverse lens focussing mechanism printed in Acetal on an @Ultimaker is one of those applications. You’ll like this I promise.
http://bit.ly/13Mpfpl

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eBay…

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I know - I’d agree. The few I’ve been to didn’t have anything beyond an occasional Polaroid. I go to ebay for camera stuff. Or Craigslist.

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You need to get yourselves to the UK. Cameras and lenses a plenty in our junk shops.