Order a second set of pillow cases to accompany your sheet order.  These pillow cases are offered in the same color as your sheets.  Two sizes - Standard (20 X 30 inches) and King (20 X 40 inches).  The additional pair is priced at $12.99.  

If ordered separately (not ordered with the sheets) there is a $5.00 shipping charge.  Otherwise, the additional pillow cases will be shipped with the sheets all for one $7.00 charge.