Where to find chandelier globes

I have 2 chandeliers in my house that only have light bulbs in them. They have little round tray type things on the bottom which I assume could hold a globe of some sort. I've seen many small lamp shades that attach to the light bulb itself but does something exist that would go around the bulb and rest on the tray? Where would I find something like this?

Re: Where to find chandelier globes

You can try this website:

http://www.homedecorators.com/lighting/shades-and-accessories/chandelier-shades/#p=1&f=color%7Cred,black