Lift an object off without touching it

TLAEB002

Shruti claims to be better than Jugaadu in tinkering projects. Jugaadu asks Shruti to lift a piece of cardboard in the air without touching it. Shruti can take the help of her friends. Do you think you can help her?
drone kit
  1. Make a square on the cardboard with length equal to the shorter side of the cardboard.
  2. The center of square should be at the center of the cardboard.
  3. Attach 4 motors to the edge of the square.
  4. Connect batteries to the battery such that not adjacent motor should rotate in the same direction.
  5. Disconnect motors and connect fans and test different combinations to fly.