From years ago. Colored pencil and Magic Pencil.
Monster designs. Luv to do them.
The best is just going for it. No must try to make it look "good" or like something totally familiar. And no prep. What lines go down are the ones. Sometimes the results are terrifically awkward. But they are also more free of imitation and limiting (ingrained/preconceived) notions of good design.
Both from 2007. Nearly a decade ago!!! Ack!
Or should that be: "Blaeh!", "HEE HEE HEE!", "Hiss!" and "Argh!" and "AroooOO!"