At CNU we have a "Signing Day" where sophomores put on some nice clothes, go to the ballroom in the student union, find their department's table, and sign a register officially declaring their major.
It's pretty cool.
This will be my second and last as chair of the math department. My plan is to return to the physics department next fall.
So we wanted to give the math majors some nice swag when they signed our book. We settled on a thumb drive (2 GB) with one of math's most famous equations.