Need a drum-shaped shade for my vintage lamp.?

Question:I have a lamp that I purchased on Ebay and re-wired. It is from the 60s or 70s, tall, like a living room type of lamp. I need a lamp shade to match the era. Does anyone know where I can find a retro or vintage lamp shade to fit my lamp? I keep looking on Ebay, but can't seem to find just the right one; and I don't want to pay an arm & a leg for it either. Any help will be appreciated.

Answers:
This might help:

http://www.smarter.com/---se--qq-drum%2b...