A Mighty Fine Time Machine — Suzanne Bloom

How can you turn an empty box into a time machine? Samantha, an anteater, helps her friends Grant, an aardvark, and Antoine, an armadillo, add a bunch of thingamabobs and hoozie-doozies to create a spiffy but still not-working time machine. Then she comes up with the perfect idea: Put it in a wagon and add books. The mighty fine time machine becomes the �"best do-it-yourself bookmobile anyone could ever imagine! And it works!”