There was a cartoon I really used to enjoy with these two young woodland trolls as main characters, one was short and tubby, the other was skinnier and blond. There's a really catchy tune in the beginning. I remember in one episode they see a sort of swamp witch that had a huge snake tail, and another where a man who has two sons that look exactly like them mistakes them as his sons and brings them home. It would be so awesome to find this.

The Little Bits