I've used soap and water on one and definitely helped out but the skirt wasn't in very bad condition. My Dad gave me the go ahead to use lysol cleaner that's in a spray bottle like a glass cleaner bottle. Again, it definitely helped out but didn't bring them back to total life. I'm trying to find the pledge stuff but I don't think we have it in stock.
I could take goof off to it but I'm not sure how that will work...?