TINY BRUSH ROBOT (easy to Make,runs Like a Car)

This is a tiny brush robot (or basically a small car) which runs smoothly on a surface.it is easy to make within 5-10 minutes from household items...
You can see how it's work on YouTube link is
https://m.youtube.com/watch?feature=youtu.be&v=I_iZVr57jWU

Material required for this are
•A toothbrush
•a small vibrating motor ( 1-2 cm long can be easily found in old cell phones)
•A 3 volt button cell
•A two way tape
•small hand saw (for cutting toothbrush)

In the beginning, we have to cut the toothbrush's top most part from the lower part. Like shown in the picture. We only have to use a upper part.

Now take the vibrating motor and cut the plastic covering of wire from ends so we can connect it with battery (like shown in the figure).

Now paste a 2-3cm long tape on the back part of the brush as shown in the picture. then place vibrating motor on it as shown in the second picture. Make sure that one wire is stuck to the tape.

Now place the cell on the tape such that the lower part of the cell touches the wire. then cut a square piece of tape and stick it to the other wire (so it can act as a switch).

Now you just have to press the upper part so the circuit complete and place the robot on some plane surface so it can run. You can watch my video on YouTube to see how it's work
https://m.youtube.com/watch?feature=youtu.be&v=I_iZVr57jWU

Thanks for reading this.