I did a google search and saw several metal knobs that could work, but I don't know how the original attaches to the cable.

Here's one of the nicer ones.
K-Gor-OB - Gorilla Knob Oiled Bronze finish

__________________
Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys