I've seen a lot of fanfictions where a character is half veela or goblin or house-elf along with numerous other magical creatures and I like those ideas. But sometimes the combinations get a bit strange such as half human half dragon which seems kind of impossible to me. Another thing I see quite a lot is the character being a bit of everything they're a centaur werewolf unicorn hippogriff troll person, and to me that seems perhaps a bit too many creatures to be half of, in my opinion it should really be no more than two magical creatures plus human that the character should be but then again it's just my opinion.