By means turned out to be at hand, one can assemble a simple car, in the base of which the most usual mousetrap will locate.
1: Materials
2: Pens
Take ballpoint pens to pieces. Their plastic tubes will be required.
3: Balls and discs
Cut off upper parts of 2 air balloons. Pull them on discs, as it is pictured.
4: Hooks
The hooks must quietly move along the entire tube length, but without dropouts. If the hooks fall out, they can be bent with pliers.
5: The center
In the center of the plastic tube, a hole should be made with help of a hook.
6: A lace
Insert the lace into the hole and throw it through the right end of the tube. Tie to the right end the toothpick or a small item, which would not allow the lace to come out back into the tube. Pull behind the end and make sure the lace does not actually come out.
7: A mousetrap
Install 4 hooks in 4 mousetrap angles. Try to make equally sized hollows.
8: Drive mechanism
Insert the first tube as the front wheel drive.
9: Wheels
Spool balls on junctions of discs and the tube. Insert discs. Likewise, create the rear wheel drive.
10: An axle
The lace will serve as an axle. Tighten it and attach to the mousetrap as it is pictured.
11: Rear wheels
Connect rear wheels similarly to the front ones.
12: Drive
Carefully attach the lace to the mousetrap mechanism. Now, if any item is put to the trap, it will be activated and it will start the car forward.