Wall-E is completely scratch-built and cca 3" long / high (7,5 cm).
The base is polystyrene cube 3x3 cm, covered with thin cardboard paper.
Cardboard paper is also used for the eyes and hands.

The arms are made of wooden skewer.
The tracks are made of thin wavy cardboard.
The wheels are made of small washers.
The neck is made of different plastic parts of a ballpoint pen.
The arms and neck are fixed to the main body with nails.
The flower is detachable.
Also used some putty. I used standard Revell email colors and added the weathering effect.
The eyes, name and solar battery computer are printed as stickers.

Points of articulation:
1. you can turn the head / eyes
2. you can move the arms up and down
3. you can move the hand forward and backward
4. you can turn the hands around