Pixie dust

Pixie dust is a magical substance made of various flower pollens and used by pixies for casting spells. In the EMPATH: The Luckiest Smurf story series, it also causes a euphoric reaction to anyone who inhales the dust through snorting, though very few living beings in the forest actually use pixie dust for this purpose. Since only pixies make and use this dust, it is highly controlled and thus hardly anyone besides them is found with any quantities of pixie dust apart from evil people (most likely trolls and imps) extorting it from the pixies.