Dust caps 9inch drums or a workaround??

Cant find them anywhere.

1971 dodge demon 225 /6 9 inch drums all the way around.

Looking for the dust covers for the front tires. I am not sure what the size is but I know for a fact Auto zone and O'rylies does not carry them. I even bought some cheap ones and they were too big.

If anyone knows what I can do for the time being to cover them please do share. I do drive it daily as its my only vehicle at the moment.