Wow, it's been ages!
A while ago I got this book:
Although I enjoyed browsing it, I haven't got to use it, until today. Well, I didn't exactly use it, other than as a clipboard, but I certainly was inspired by it:
Not the most scary mythological beast, I know. But this goat-serpent creature just saw the hay stacks, and in its excitement got all entangled as it fell from wherever it is mythological beasts sit.