Alloy wheel dust covers for ford focus 1600,2007 5 stud?

hi . iv had a few BMWs in my time and i used to have two wheel dust covers to keep the brake dust off the alloys , they were a great idea , they were universal and fitted all cars ,saved cleaning wheels every two mins , im now looking for some for my focus , kleen wheels do them but not for the focus that i have , alredy asked , also the ones i had yrs ago were rubber , the ones that are sold now are steel , anyone got any ideas where i can get some , cheers