Yes, i lie on my bed with my shoulder hunched then move it down or to the side away from the shoulder.
How do you crack your femur?
I have two ways of cracking my femur (I guess it's my femur…it's at the top of my leg where the femur connects.) The most satisfactory way occurs when I am standing -- if I apply pressure to one of the legs until I feel that pressure feeling there, and then I slowly turn my upper body at the hip against the pressure feeling, it will pop. That way isn't as easy, but feels best.
The other way that I do it gets both legs done at the same time. I just lay down flat and squeeze my legs together and they both pop.