Pad the mirror from underneath, and add some around it to support it.
I'm sure I saw some kind of rubber similar to the sort that they use for
beading on windows and doors that had adhesive on one side for this sort of
thing. I guess its the only game in town if your wall hads a bow in the
middle like mine has.
Brian

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The Sofa of Brian Gaff...

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"Fredxx" wrote in message
...
The mirror is approx 400 x 700mm and is 6mm thick with edge bevels that
reduced this to 3mm.

It has no mounting holes and I don't want to drill any.

I can get mirror corner mounts but these are designed for 6+mm glass, and
conscious the mirror will rattle around in them.

Is there a better way?