Twisted sister or crystal mistress

[Jet]

What's the best way to condition one of these calls?

[MG150]

David sells a conditioning stone fixed on a wooden handle on his website for $5.00.Thats what he uses.There are some videos on youtube of him using and how to condition his calls.

[scoot12]

Drywall screen works good on them too.  Scoot

[outdoors]

                MAN O MAN
                I JUST GOT
              Twisted sister
             SHE'S AWESOME