In message , Barb
writes
Thanks for all the suggestions. I agree, cellulose thinners is a bit
extreme, which is why I asked for an alternative.
I'll try the mousse and the nail varnish remover.
Heat is also a good idea.
I've had a go with the stanley knife and a scraper, but I will literally be
there until Xmas without something to soften them.

I'll get there in the end!

Barb

Angle grinder - you know it makes sense
--
geoff