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Anchoring a Hemma cord set into an old metal lampshade?

I need help in figuring out how to get a Hemma cord set to be held in place within the large open hole in the metal lampshade.?

The hole is about 4 inches in diameter. Pictures attached!

Or if you have any other ideas of how to turn it into a functional hanging lamp, I'd really appreciate it!

In case the pictures don't attach - http://www.flickr.com/photos/sarahlovesyou/sets/72157617576483268/