For those of you who like to scratch-build, here is a quick way to
build a train out of 3/8" x 3/4" sticks of balsa wood.
In this
photo, you can see how I added a few sci-fi bits and paint for detail and sanded the front end to make it more rounded and "bullet-train-like". While "N" gauge track is not really in scale, it still looks nice.