Try any online lighting store like lighting universe and type
onion light in the search.

I did. No luck. Actually I've tried 7 different stores, but I think these lights are very expensive, maybe only a decorator has access.

Did you find anything close to that style?

http://www.lightinguniverse.com/mobile/productitem.aspx?sku=9718683&gid=548101

http://m.lightingdirect.com/designers-fountain-1761-rt-1-light-10-onion-wall-lantern-from-the-nantucket-collection/p855594

Judy, Thank you very much.