Stardrop

The Stardrop is a pet-summoning item that can be summoned by the Dryad by giving her a Joja Cola and allowing her to purify it. It is used to summon the Junimo pet.

It will follow the player at any speed and fly by spinning the leaf on it's head once the player is too far away.

Trivia

 * This pet is an Easter egg originating from a game called Stardew Valley, hence the tooltip, in which it was the mysterious creatures of the forest that would help the player in rebuilding the community center, among other things.
 * The Stardrop is also from Stardew Valley where it is a rare item that increases the players maximum energy when eaten. It would also "remind" the player of their favorite thing, which is probably why the tooltip says that the flavor is like a dream.