Creepy Spider Web. What spine-tingling fun! Hang this frayed and creepy cloth cobweb in a window or on a porch for all the trick-or-treaters to see. A creepy addition to any Halloween party, this eerie decoration is will give partygoers and trick-or-treaters the creepy-crawlies — imagine the size of the spider that wove this web! 4 ft. x 4 ft.