Domovoyes
Domovoyes are tiny domestic spirits from Slavic traditions. These beings, invisible to humans, are said to be covered in black fur. They have the ability to reduce their own size.
These beings are very attached to the dwellings they inhabit, and therefore refuse to move. If a family changes homes, the domovoyes will adapt to the new inhabitants.
Like so many other goblins, they enjoy receiving gifts, although they prefer that the offerings not be delivered in person: these must be left in some corner of the house. Sometimes they can play pranks, but scolding them with a shout will be enough to prevent them from doing so again.