Fast forward to the past 3 years when I became a Seminary teacher and wanted to find these plaques for my own students. It took some detective work, including THIS POST, however, I eventually located the contact for ordering the plaques thanks to a fellow Seminary teacher who is a member of the LDSSeminaryTeacher Facebook Group.
Here is the information for ordering the plaques, with below photos directly from Barbara Williams, the contact person.
$9.75 per plaque plus shipping
Add to the cost:
1 line- $2.10
MAKE SURE YOU ORDER 30 DAYS IN ADVANCE.
Each year has a design that compliments the course of study. The upper right hand corner is the Doctrine and Covenants-Church History design.
Below is a plaque I have not seen before, the Lamp of Knowledge
(Could be used for graduates)