Everyone got involved! I have some really creative students, teachers and paraprofessionals!
With Kindergarten we did it as a whole group. It worked better this way since their reading skills are still low but there were a few students who could pick out some harder words. Then those who were reading on level or a little below were able fill in with some of the "easier" words.
With 1st and 2nd we did one as whole group but I also let them do their own. Since I used pages from chapter books some students circled sight words while others were able to circle harder words. Usually the teacher or para sat at the table with them and helped them as needed while I ran the library.
3rd-5th I show examples of what a couple of paraprofessionals, my student helpers and I did. Then they did their own.
I did not limit how many pages they could tear out of old books. Some students wanted me to put their's on the window but also wanted to take one home to show their family. So it worked better to let them tear out more than one page.
This is something I plan to do for many years to come!