Having a Skeletal Mesh hang in the air? hanging from a noose

im trying to get a skeletal mesh to simulate physics but still be about to grab a bone or socket to be able to make some sort of noose effect. at the moment im trying to simulate physics and then attach a neck bone to a sphere i have in the air, but have been failing. the skeletal mesh does is fall to the ground… any idea? maybe wake up all bones but the neck?