I just got called to do the teacher/staff appreciation cake for my son's elementary school.

It has to be a 9X13 all BC.
I was thinking about a sheet of paper with the thank you message for the top, and green chalkboards with kid's drawings for the sides, but somehow that just doesn't seem right. It's not very colorful, and it's for the whole staff, so I don't necessarily want to put ALL the focus on the teachers.
I'm stuck.

I want to make it something special without going totally overboard. I'd love to hear some ideas if y'all can help me.
Thanks guys!
