Anyway, when I told my oldest son about this picnic, the first thing he asked was "Are you going to make a cake?"
I wasn't on dessert duty - I was just supposed to be bring the hot dogs. Much easier than spending hours hunched over a cake. But he was looking at me with those puppy dog eyes, so I asked:
"Do you want me to make a cake?"
He nodded vigorously, then said "A train cake!"
How could I resist that? So I said okay, and spent half the day squirting frosting in all the appropriate places. Here's the end result.