There are several commercial sources for clerical vestments. One can also find several individuals who will make custom stoles.
The following sites are good sources for mass produced vestments:
Lynne Wood (married to Pastor James Wood), has made stoles for many pastors.
Should a student wish to order one from her, they can choose designs from the photos or e-mail her a black line drawing of the design they want. She would need to know how long they would like their stoles and a deposit of $50.00 per stole. She charges $325.00 each plus shipping. They can contact her directly at firstname.lastname@example.org or by phone at 807 223 3833 or text to 807 938 8613