Where to Find Felt Protectors?

[Velocivixen]

Hi All. I haven't been around for awhile, but I'm back in the saddle and have a question. I have something that I want to mount on the front fork of my bicycle (2011 Robin's Egg Blue Surly CC). It involves a screw with a lock nut. I don't want the lock nut to scratch the paint and I know bike shops have these small felt pieces that look like a washer to protect paint. Where could I get one? I could go ask my bike shop, but don't want to ask for free stuff. Any other suggestions as to not scratch the paint? Thanks.