acorn
['bulbul', 'croquet ball', 'black and gold garden spider, Argiope aurantia', 'breastplate, aegis, egis', 'leatherback turtle, leatherback, leathery turtle, Dermochelys coriacea', "yellow lady's slipper, yellow lady-slipper, Cypripedium calceolus, Cypripedium parviflorum", 'screw']