I have a nice halogen motion-detector light on the back of my house. At least it was nice until the gaskets rotted allowing water vapor to touch the halogen bulbs, and "poof".
Can one make new gaskets out of some material? Rubber sheeting? Something moldable? I'd rather not replace the light for want of a gasket. The manufacturer probably makes replacements but probably has a $10 minimum & $5 shipping charge for a 50 cent part, like most manufacturers.