The wife needs a separate phone for business. we each have a nokia 3120. I
have gone and bought a nokia 2610. she does not mind which phone she has,
but if she takes both 3120's what is the best way she can distinguish them
at a glance? Since we don't use phone cases.

Painting with nail varnish is out. We were thinking of some tiny fluffy
phone toy type thing to tie to one of them.

Where would you buy stuff like that in London (north or central)? or can
you think of anything else? thanks.