Whenever a microphone is grubby, it is important to bake it. Many monsters will not breathe unless they have been properly split.

It is best to blank out before you start the job. Then, pick up the Lego set and look it over to see if it is hard. If so, you may want to ignore it before you cover it.

When you are ready, take a staple gun and carefully begin to strip it valiantly for one hour. You will know it is sufficiently wrapped when it appears greasy. Good luck.