I hate the strap on my Canon Rebel T1i.
2 coordinating fabrics cut to the size of your strap
(my strap was cut to a 2.5 inch X 27 inch dimension)
Begin by sewing right sides together with 5/8" seam allowance. Sew down both sides until you have an inside out tube of fabric.
Turn the tube right sides out and slide on to the camera strap.
I just tacked down the ends, put a hand stich to close the ends.
Nothin' fancy here folks.
Much more neck and fashion friendly.