I have used scratch remover liquid to cover up the scratches in wood, whether 
it was an old bed or new table.  It comes in different shades and can be 
found in the furniture polish section of your local Walmart, Kmart or other 
store.  You just used a clean cloth to wipe it on, then wipe it off, applying 
again if more color is desired.  Another method is to paint the surface, let 
dry, then cover with a color stain of your choice.  With wood frames there is 
also wood putty sticks at the local Home Depot in the furniture refinishing 
section.   I have painted ceramics for years and would paint the piece, then 
completely cover the piece with stain, either spray or brush.  Then 
immediately wipe the stain down until it was only in the crevices.  Made the 
piece look old.  Look in your local ceramic store for the supplies.  If you 
want to make your own frames out of plaster or ceramic, buy the unfinished 
picture frame and do it yourself, that way you can have a frame that looks 
old and paint it the color of your choice.    If this is confusing, I will be 
glad to explain the process to anyone who needs help in doing their own 
"antique" frame.

Jan (West researcher)