Kinect Custom Cursor
using Microsoft.Research.Kinect.Nui;

Runtime nui = Runtime.Kinects[0];
nui.Initialize(RuntimeOptions.UseSkeletalTracking);
nui.SkeletonFrameReady += new EventHandler<SkeletonFrameReadyEventArgs>(nui_SkeletonFrameReady);

void nui_SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
{
    SkeletonFrame sf = e.SkeletonFrame;
    SkeletonData d = (from s in sf.Skeletons
                      where s.TrackingState == SkeletonTrackingState.Tracked
                      select s).FirstOrDefault();

     if (d != null)
     {
          SetHandPosition(imageCursor, d.Joints[JointID.HandLeft]);
     }
}

void SetHandPosition(FrameworkElement e, Joint joint)
{
    Joint scaledJoint = Coding4Fun.Kinect.Wpf.SkeletalExtensions.ScaleTo(joint, 600, 400, 0.75f, 0.75f);

    Canvas.SetLeft(e, scaledJoint.Position.X);
    Canvas.SetTop(e, scaledJoint.Position.Y);
}

private void button1_MouseEnter(object sender, MouseEventArgs e)
{
....
}