I LOVED this swap when I got it at convention a few years ago. I thought this was such a ingenious idea! So simple but SO fun, I made a whole slew of them for my son’s second grade class last year for an end of year surprise.
The kids totally LOVED the bubble container that was inside, and honestly I got some Mom interest because all of my contact info was on the back of the project. I know it was a bit shameless but I killed two birds with one stone- I was able to give the kids something fun to play with the last day and the I got some much needed marketing out of the whole deal. I copied this one exactly for the entire class.