We made the favors for Holly's birthday party (and I neglected to hand half of them out!). We used the bubble art we had made earlier. I cut the paper into 2"x3" rectangles and then I cut slits on either side. Holly stamped "thank you" on each one and then Conor and Greta slid the bubble container into the paper slits. It's was a real assembly line. I love how they turned out. And I love the play on bubble art and bubbles!