Hi Linda, light fixtures aren't something you really see with the willow pattern. Not sure exactly what you are wanting. Most are painted or made by someone. I have seen lights made from cups and saucers and then shades painted with the willow pattern. There are some vintage shades with a willow variant that I have seen, but those are usually just a single shade piece.

A quick google search for "lights made from dishes" turned up some interesting ideas and may some inspiration for what you are looking for.

Hope I helped a little!