Be sure to indicate that this is a thesis defense.
We pride ourselves on the quality of our work and useful service. You simply send the topic and expect an empirical delivery. The thesis you get is written from higher by a writer you pick.
Flyers should be placed in the mailbox of all faculty and probably all graduate teaching associates, as well as on the official departmental bulletin board outside the department office. Work with the staff in the office to get the flyers distributed to the mailboxes and the bulletin board.
In addition, post a few flyers up around Bldgs. Do not put a flyer on anyone's office door without first obtaining their permission.