Negative space letters, stencil the letter outline then doodle around the letter or temporarily tape letter down and doodle around the letter. Leave letter negative or doodle inside with a different color or doodle a few lines, so many possibilities.
Sketchbook Idea. Form something new from what is already there. Be poetic! Don't let the written word scare you if you don't normally work in it. Learn to use words in your art in ways no one would expect!