Spievack's brother, a surgeon in Boston, had sent him a vial of magic powder — the narrator called it «pixie dust» — and told him to sprinkle it onto the wound. (discovermagazine.com)
[7] Link breaks the curse by sprinkling Magic Powder on him, but Tarin later has no recollection of what happened to him and thinks it was a dream. (zelda.gamepedia.com)
Lustre dust... sparkly magic powder with the power to give plain royal icing a beautiful metallic sheen. (sweetsugarbelle.com)