Huge wrote:
Anyone got any good ideas on how to fasten a wooden side panel onto a
bath in such a way that the fastening is; invisible (from the outside),
adjustable (it's bound not to be level) and removable (should I need
to get at my scabby plumbing)?

I'm tempted to ignore the "invisible" requirement and just screw it on
with nice screws (chromed dome heads or mirror screws or somesuch)...

I've just found a couple of rolls of Scotch "Magnatherm" tape in a box
in the loft (Ideal weather for turning out the loft!) It is in two
parts, one is a self adheasive steel band , the other is a magnetic
band. Sold for DIY double glazing in 1/2" wide, 10' lengths.

Should do you!

Andrew