Foam PAds?!

You should be able to find the yellow Meguiars foam applicator pads at WalMart. No, they will not scratch your paint. You do have to be careful though not to get anything on the applicator that could scratch the paint.
 
You can wash them in a bucket of dawn dishwashing liquid, rinse them out and let them air dry. I buy them by the dozen from Meguiars (12 for 5.88) so I pretty much throw them out after each use.