How to Get a Bubble Out of a Nebula

If we want to get need a bubble, and we need it fast. The best way to do that is to just explode a giant star. And often these super nove are the one ta actually get the whole process rolling. I think my favorite example of this is the the supernova 19 87 a,. which was really the close supernova that has been recorded in modern history while we had really good telescopes.