Talia splattered with clay

Talia Al Ghul gets splattered with clay in her encounter with Clayface from DC Comic's Young Justice #12 (2012)

Credit to Mr. Zero for this find

Harley Quinn covered in pudding

Harley Quinn covered head to toe in pudding in “Beware the Creeper” from the 1990’s Batman: The Animated Series

Batgirl pied

Batgirl getting a pie in the face in 1968’s episode of the Adventures of Batman “Simon the Pieman”