The bumpers features a traditional norwegian mythological character called the "Nisse", who is something of middle thing between a gnome and an elf. He lives on farms in rural Norway and watches over the livestock and people living there. If you don't feed him properly, he will start misbehaving. I think this character is local to Scandinavia, alghough most old cultures have some kind of "house spirit" that needs to be respected.
25 Creative and Best Typography Animation Videos for your inspiration