My husband and I made this for our son's 2nd Birthday. It was my first cake attempt. We really enjoyed doing this together and listening to our boy bounce around the room saying "mommy make me choo-choo cake." We baked the cake in loaf pans and cut them into the various square sizes and the round part on the engine we baked in a cleaned out green bean can. The smoke stack is a frosted marshmellow. The cake was easier to frost when we froze it.