A helicopter (chopper) is a type of rotorcraft in which lift and thrust are supplied by engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally. Take a look at this Helicopter, this Fixed wings of chopper will move but Chopper is not gonna move an inch, the place to draw a Chopper is very perfect, Kids will surely like this Chopper if not the elders or others

What do you see in the illusion below? A horse only? or a frog only? Mostly people see horse but if you see it with concentration, you can also see a frog.