How to fold an origami steamroller

Fold a yellow half sheet into a strip and stand its end up as the cab. Fold a black square into a big round drum and glue it at the front.

You need: Half a 15 cm square, yellow on one side, a 9 cm black square, a glue stick and a black pen. Medium, 7 steps, about 10 minutes.

Steps

Body: fold in half. Lay the yellow half sheet white side up, long side across. Fold the bottom edge up to the top edge.
Body: stand up the cab. Fold the left end straight up on a 45° slant, starting a little left of the middle of the bottom edge. It stands up as the cab.
Drum: new sheet. Set the body aside. Take the black square, white side up.
Drum: corners in. Fold all four corners in to meet in the middle.
Drum: hub. Fold each point back out a little, so a white square shows in the middle: the hub.
Drum: round it. Fold the four points of the square behind, so the drum looks round.
Glue on the drum. Glue the drum on the front of the body, low down, so it sticks out in front and below.

Draw the cab window and roof, a chimney on the engine, a fork down to the drum's middle and a black back wheel under the cab.