Oh, wow!!

Thankyou so much, Miss Nancy! That is exactly the kind of effect I was looking for.

Now i can see which nodes are being used, I will start playing with the settings, and adding some other nodes just to see what happens. (but that likely won't be for a couple of hours yet - 37 degrees here today and I'm on the verge of passing out :( )

I am finding the Material Room rather confusing, and with no clear idea what most of the nodes do, so I am really learning by example. Looking at the Material room setup people have used on their props and characters, see how it works, and then play around to make something of my own :) So this is really appreciated!