Wouldn't the rubber bands eventually provide enough pressure on the light bulb to make it shatter? You would think so, but after watching this video by Nextraker, you'll see that gently wrapping an ordinary lightbulb rubber band after rubber band, until completely covered (and then some), does not break the bulb. Even when you throw it on the ground. It's just like a bouncy ball. Now… try this with an egg. Dare you.