And the secret (from 8 June) revealed. Thanks to Aunt Phyl for letting Kellen freeze the hockey rink in her freezer because all the available side-by-side freezers we tried were too narrow for the cookie sheet. Dave and Phyl even had to clear a whole shelf in their freezer for this project. It takes a village.
Daddy helped by making the hockey sticks and puck (two black buttons black buttons glued together), but that was ok, because, as Kellen said with a shrug of his shoulders, "He knows everything about it anyway."
Happy Father's Day.