A pen lies on every desk. Using it plays the writing animation. In the Exam Classroom you need a pen in your hand to write answers on the exam paper.

A textbook lies on every desk. Picking it up while seated stands it up on the desk, and using it turns the page. The subject is rolled at random each class: Chinese, Math or English.

A plunger stands by every toilet in the Restroom. Holding use on a clogged toilet for 3 seconds unclogs it. You have to stand to use it, and it is never used up.

Cheat Sheets #1 to #12 match the twelve questions of the Final Exam in the Exam Classroom. Reading one takes 1.6 seconds and gives inspiration for its question.