Hi Ian
Have you tried trailer suppliers eg Indespension or maybe Towsure? I assume you've tried jolly old ebay? Sorry haven't haven't time to try these myself but they may prove worth a look
Ed

Thanks for the idea Ed,

There is a trailor supplier near me, I'll try them.
Indespension didn't have an easy to browse site. I must get ttheir catalogue. Towsure seem to do covers for small wheels 8-13" and big 4x4 wheels. As usual I didn't see anything to fit ordinary cars.

I'll keep looking,

Thanks,

Ian