Feline Familiar

The Feline Familiar can be purchased during the Hallow's End holiday event. When the player takes flight, this pet flies with them on its own small broom.

Source
This item can be purchased from Chub or Dorothy for 150 Tricky Treats during Hallow's End.

Pet Journal
Ride with the moon (and this furry, whiskered witch) in the dead of night!