I do remember seeing Umbaclay a few years back. Marie Gower was selling it.
She also makes absolutely beautiful miniature flowers with it.
I will e-mail you off the list with a contact address I had for her from a
few years back. No idea if it is still current though.
> I live in Crete, Greece and I would like to have a go at making
flower arrangements using Umbaclay. I am unable to find this material
here and wonder if anyone knows of a UK supplier who would ship to me.