Not your usual sort of graffiti, but I like the Superhero named "Read"
Superhero Reading Strategies $
Superhero Classroom Poster Reading is my by TeachingwithClass
Superhero reading nook made from cardboard!
Superhero Classroom Doors
Classroom Decor - Superhero Theme Instead of boom or crash. Use read. Write. Math?.
Reading Superheroes Bulletin Board http://www.teacherspayteachers.com/Product/Reading-Superheroes-Classroom-Theme-745218
ABC Line (Superhero Themed) by Trina R. Dralus Free!
Superhero Classroom Posters – FREE
Superhero Classroom Poster Braver than you by TeachingwithClass