Wholesale Shadow boxes/frames

[francisbmewbly.livejournal.com]

I'm trying to find somewhere online that sells shadow boxes wholesale for a small amount of $$.  Just the run of the mill kind you can find at Hobby Lobby (but not $5 each like they are there).  I've looked on Ebay and tried Google, but I dunno really where to start with doing research on this sort of thing.    
I want to make them to sell, so I am trying to get them for as cheap as possible.