As I mentioned before, chaplets differ from devotion to devotion and saint to saint. I've finally found some chaplets made for the chaplet prayer to Saint Joan that is on this site. These are both beautiful chaplets, I suggest you consider these folks if you don't already have a chaplet for Joan!

Just West of Rome

This silver chaplet is made of Czech glass and silver fluted metal beads. The middle connector has Pope John Paul II, and the Joan of Arc medal has "Pray for Us" on the reverse side.

This chaplet can be found here.

This one is $8.99.

JWOR can also make your chaplet according to your color specifications.