Etsy finally rolled out the ability to change usernames! As such, I have changed mine from stardust.etsy.com to ElementsArtifacts.etsy.com to more closely reflect my business name. The old URL will redirect to the new one, so your bookmarks should continue to work even if you don't update them. The elementsandartifacts.com URL continues to direct to my shop as well.
You'll want to keep an eye out for new work once we're past Halloween. Until then, spooky wishes! :)