https://www.shapeways.com/product/A9ASTARW7/lightbulb-cage?optionId=5933185613;
Do you dabble in vintage light fixtures?
Here is a great solution for ambient lighting and exposed bulb fixtures. This particular one fits over a lightbulb that is 4 inches long.
If you have a specific use in mind let me know, and I will adjust the model accordingly.
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