buckeye, horse chestnut, conker
['garden spider, Aranea diademata', 'sidewinder, horned rattlesnake, Crotalus cerastes', 'cockroach, roach', 'ping-pong ball', 'ground beetle, carabid beetle', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour', 'cuirass']