I have a Versamark "watermark" stamp pad...

[SoupDragon]

... and I can no longer remember why I bought it or exactly what it does. I remember seeing something done with it in a magazine and thinking "oooh, I need one of those" but I've absolutely no recollection what it was I wanted to do!

[uptillallhours]

you can stamp onto plain coloured paper/card and it slightly changes the colour...so the image looks like a watermark.

hth

[SoupDragon]

Ah... I thought it might be something like that.

[fubsy]

Just been ordering some gelly roll pens from Joanna Sheen. She says you can use watermark pads for embossing powder the same as a clear pad. Dont know if thats any help.....

[champs]

hiya soupy!! how's baby dragon??

you can use v'mark for resist stuff too. stamp image, use chalk, ink or yummy chalk eye ink over it.
you can also ink just the image too for a diff look.
rub with clean cotton wool.

embossing as fubsy says,

water mark backgrounds are nice too (like uptillallhours sugests)

love my versamark, i got the "pen" too