Habetrot

The patron fairy of spinners in the Border Country.

While not dangerous, he was a bogey-beast who was not above pulling outrageous practical jokes.

Henkies

To 'henk' is to limp and the Henkies were ugly little Trows of the Shetlands who limped when they walked.

Although hobmen like practical jokes as much as anyone in Fairyland, they are very helpful to mortals and behave much the same as Brownies. See also Goblins.