During the school year, we go to a small group Bible study, and drop Fiona and Aiden off at the church gym for activities there. At the end of the year, they had a "Fun Fair" with activities for both parents and children to enjoy together, and awards for things like best attendance.
While we were there sitting together on the floor during the presentations, Fiona got out the foam cross she had decorated at one of the stations, and some plastic animals she had won in a game. "Look!" she said, hopping an armadillo up to the middle of the cross, "here's a cross for this frog to die on!"
What do you say then?
On the bright side, the message is getting through, although not quite in the form I would had hoped for!