I'm shopping for light fixtures and ran across this:
Home Decorators Capri 1 Light Pendant is 22"Hx10"D at 184 dollars.
Shades of Light Pendant is 15"Hx6"W at 99 dollars.
Or, to me it looks like you can diy one with this:
I haven't tried this yet, so feel free to add whatever to make it work.
Step 1: Purchase a Glass Jug (maybe something without a handle)
Step 2: Cut the bottom off the jug:
via The Bella Files on Glass Cutting
Step3: Add Light Pendant and Chain
via Pottery Barn
Maybe one of these:
Portfolio accessory kit
You could add one large chain link to the chain to keep it from slipping through the jug.