Though they’re getting harder to find, and more unreasonable to use, you’re likely to still have a few incandescent bulbs somewhere in your home. And when they fizzle out (which they will!), then what? Why, make an awesome vase, of course!
I actually made one of these this morning, and I’m pretty happy with the way it turned out! But, the instructions and photos from the pros at ReadyMade are much better, so go there to learn the step-by-steps.