Black Cat Emporium › Knock, Knock Coffin Slate Image 1 of 1 Knock, Knock Coffin Slate $15.00 Knock, Knock… who’s there?! This slate is cut, crafted & painted by hand. Add To Cart Added! Knock, Knock… who’s there?! This slate is cut, crafted & painted by hand. You Might Also Like Vampire Puns Slate (Medium) Keep On Witchin' Slate You're Next! Coffin Slate Fangs for the Memories Slate Yes I Can Drive Stick Slate