Lightning Carrot

The Lightning Carrot is a pet-summoning item purchased from the Zoologist for after completing 50% of the Bestiary. It summons a Volt Bunny pet. Using the item does not consume it, and it will remain in the player's inventory. The Volt Bunny can be despawned by right-clicking its buff icon.

When flying to keep pace with the player, the Volt Bunny emits a decent amount of light while moving erratically, which can spread light over an area.

Trivia

 * The Volt Bunny is a reference to the iconic character, who is colored similarly and whose abilities revolve around electricity. Its animation while flying is also likely a reference to Pikachu's Quick Attack animation from the  series of games, sharing similar erratic movements and particle effects.
 * The tooltip is a play on the words "ecstatic" and "static", "ecstatic" being a synonym of "delighted" and "static" being an electrical charge.