I see drum chandeliers around, but haven’t found one exactly like mine. Try Lamps Plus or even Shades of Light (both online) – they have a huge selection.

They’re both great, but I think the Green Hills location, while smaller, is less known and as a result has different items and might offer an opportunity for better deals. But, the Western Hills location is larger, with more stuff, and is easier for me to get to from home. So, there are pros and cons to both!