Not sure which BoxTops poem you are looking for but this is one our PTO uses for summer collection. We put the poem into a plastic sandwich bag and give one to each student. The BoxTops coordinator runs a contest during the first 2 weeks we are back in September and we try to publicize the prizes before the summer vacation.
A special "thanks" to all who saved Box Tops this year-
You were super-
let's give a cheer!
Summer is coming-
but don't you forget-
Save in this bag all the Box Tops you get!
Use this bag for Box Tops-
Have fun and stay cool-
But come fall, don't forget,
Send those Box Tops to school!