I would feel guilty about buying eggs in styrofoam cartons if I wasn't always finding uses for them. Here, for example, it makes an easy boat (just cut the lid off).
Those adorable figures are from the Playmobil 1-2-3 toddler/preschool line.
I thought S would really like this. He immediately created a storm and the ship was lost at sea. Maybe that does mean he liked it.