Two coverings of kettles—lids (eyelids).
Two musical instruments—drums.
Two established measures—feet and hands.
Two coverings for the head—caps (kneecaps).
Several articles that a carpenter cannot do without—nails.
A couple of fish—soles.
A number of shell-fish—mussels (muscles).
Two lofty trees—palms.
Two kinds of flowers—tulips and iris.