online they only have a couple of "condensation" type effects but
nothing else - have you seen say, pebbles or grass at one of their
stores?

We looked at some in Carpet Right a while ago, while buying the
thickest vinyl they did - it's a "pile" vinyl, feels kinda weird
like a short haired brush when rubbed - but IIRC the colour
rendition of the patterns looked pretty horrible (muted), and
the feel of the stuff itself was horrible to the touch.

I think it was called something Flo, or something Flow