I usually have a boy and girl helper each week.
Write their name on a circle and hole punch top. Make a stack of boys and a stack of girls. Put a binder ring through each stack. Flip weekly to reveal new helpers.
I do this instead of having multiple different classroom jobs.
-Printable PDF of classroom helpers - can write on these.
-Editable label circles you can add a text box to and print names on each circle.