The correct spelling of the plural is "handfuls". (The seldom used variant is handsful.)
The plural possessive form of "handful" is "handfuls'". It indicates that multiple handfuls belong to something or someone.
The plural form of the noun handful is handfuls.The plural possessive form is handfuls'.
The plural is handfuls.
The plural of hand is hands.
handfuls
it would have to be Handfuls
The plural form of the noun handful is handfuls.
The plural way to spell studio is studios.
The plural is "emeralds."
The plural is bridges.
The plural is resources.
The plural is cherries.