Planes, Trains, and Automobiles

I don't get it. What is it about pretending that a spoon or fork full of food is a plane, train, or car that makes a two year old magically want to eat it? Before the "Chugga-chugga Toot! Toot!" : "No, yucky, no!!!" After: (open mouth) "Toot-toot!! (crashing noises as he chews) Yummy!!" It does not matter what the food is...meat, veggies, fruit...If it is not coming in the form of transportation, it does not pass his lips. He used to like us to play "basketball" with his food, by making it bounce all the way into his mouth, but although he still loves sports, planes and trains have taken over his brain!!!