O.K. I think I understand. I'll give this a go later and see if it works.... as I understand it.  I do know that I can put other 'materials' on to different things, as I have done that, and I must admit with my latest faerie picture, it didn't turn out too bad, but that's what got me thinking. 
Thank you everyone for your help, but no doubt ...... I shall be back.  smiles