In other years, I've done my own thing basically creating a scrapbook page that included a number of group shots and candids I've taken and collected. This year though, I spotted this idea (via Pinterest, obviously) and knew immediately that I wanted to copy it.
I wasn't sure how I was going to do the speech bubble...I didn't want to purchase one and thought about just having the kids holding a black cardstock bubble and adding their response after the fact through the magic of photoshop. Wandering through Staples one day though I spotted the foam core and immediately realized that was my solution. I freehand drew the bubble, cut it out with my trusty exacto and painted it with a few coats of chalkboard paint (seriously, this can has lasted through SO many different projects! What a bargain purchase that was.)
I added the film edge frame to each shot. I customized it with the year, school and teacher info but that was probably for naught as I don't think it'll be apparent when the book is printed.
The finished product (sorry about the lame face hiding)
and a close up snap of Zack (you can see the edge a bit more here)