On Sat, 5 Aug 2006 21:09:59 UTC, Colin Wilson
wrote:

Or use very thin cord.

I suppose fishing line is about as close as you can get to invisible if
you're suspending from above - and it is quite fine relative to the
breaking strength...

The hardest thing with that would likely be how to fine-tune the drops
to the pics hang properly level, but it could probably be done quite
well by simply wrapping a few turns around a matchstick behind the
picture...

That's the attraction of the clamps and rods - the rods are very thin
and, although not invisible, look reasonable.
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