Super Easy blinking Eye Rig (Maya tips and tricks)

a friend of mine ask me about this, he was wanted to rig one of those cartoony creatures which have separated eyes from the body, I hope someone else finds it useful too.
the easiest way is to use a nurbs sphere, but the problem with that is that you cant extrude it easily also some deformers and blendshape stuff won't work with nurbs so we convert nurbs to poly, by default its triangle and format is set to fit which is terrible for our task, so make sure to make it quad and change format to general, this way when you open and close the eye sphere will keep the same amount of polygons which is necessary for if you want to modify its mesh, the expression at the end is nothing important you can key it manually if you want.