Drive the sturdy, smooth-riding Junkmobile around the neighborhood on regular collection days, or park beneath the Waste Shooter for a quick fill.
Wheels and hubcaps: Make a hole in the center of each wheel and hubcap. The skewer axles should fit through snugly. Using the same method, create two evenly spaced larger holes near the bottom of each long side of the box.
Push a lid and a cap onto the pointed end of a skewer. Thread the skewer through the holes and attach a second lid/cap pair on the other side, as shown. Trim the excess skewer with wire snips. Repeat for the second set of wheels. Rest the trimmed toilet tube halves over the axles so the truck's contents won't interrupt wheel movement. Tape them down.
Driver's cab: Trim the smaller plastic container so that it fits beneath the edge of the truck body. Pierce holes and use paper fasteners to attach the cab to the body.