Ghosts in the graveyard pudding

I make this old-school classic every Halloween for my kid: a big ol' dish of pudding topped by crumbled up Oreos + mossy green-dyed coconut, with ghosts (whipped cream is easiest, but homemade meringue or marshmallow is delicious), cookie tombstones (I like Biscoffs), candy pumpkins, and gummy worms, if I am feeling extra (I am always feeling extra). David Leibowitz's butterscotch pudding is our favorite base (though any homemade pudding is a treat), and it can also be portioned in individual cu...