Looking for steering wheel part
 

I have a three spoke wheel that is 13 inches. They used them on mid to late 80's Formula and Century boats. I am looking for the plastic cover part that goes on the end of the spoke that attach to the steering wheel. There is three of them one per spoke and they are held on by a screw. I do have a pic of the steering wheel if anyone know what I am talking about? Let me know if anyone has them? I really need them.