Tove and Fang. Fang doesn't mind if Tove is the world's smallest chain. :3
Tove doesn't like Bandersnatch much, so he either runs away, digs, or climbs onto Fang to get away from him. But he gets along with Leon, somewhat.
But Tove will also like to bury Bandersnatch in a hole or hide some of his food in a tunnel. >:3
Anytime Fang is outside, Tove appears underground and always follows him. He'll fade into Fang should the man go into a place he can't follow, like inside of a building with thick walls.
Fang probably uses Tove to send a quick message or something, given that Fang's quite capable by himself in battle. So Tove = IM chain!
Tove likes collecting clocks. Especially little sundials.
Tove is the most moe little badger you'll ever see.