halloween treats, a banner showcasing spooky marshmallows and pumpkin cookies, with ghostly white marshmallows floating

treats halloween banner showcasing spooky marshmallows pumpkin cookies ghostly white floating orange scary delicious festive decorations candy costumes haunted fun exciting creepy spiders witches ghouls skeletons spells moonlit night apples bats haunting carved mesmerizing supernatural ghastly eerie grim phantom frighful trickortreat mysterious shadowy frightening foggy spectral web costumed ai generated