I loved the creatures in the Fantastic Beasts movie and I wanted to take a shot at one of the creatures that was in the book but not in the movie (well, not the first one anyway). Here's a Clabbert! Part monkey, part frog, part Christmas light. Here's the description from the book:
A Clabbert is an arboreal creature that resembles a cross between a monkey and a frog. Its smooth skin is mottled green, and it has short horns and a wide grinning mouth full of razor sharp teeth. Its long arms and webbed hands and feet allow it to move gracefully through the trees. On the Clabbert's forehead is a large pustule which flashes red when the Clabbert senses danger. It feeds on small lizards and birds.