Making a shelf inside the robot

This is not necessary that you have to make a shelf inside the robot.That's all your choice.This is just to make the robot useful.
By following the steps given below you can make a shelf inside your robot.
1)Cut a square(size is all your choice)from three sides to make it a door of the shelf in the stomach of your robot.
2)Make some divisions by using a hard board.
3) Now your shelf is ready.