How to combine design patterns in a Java project

I am learning about design patterns in Java and I need to write a project incorporating four of them. I am struggling to come up with ideas. My initial thought was to create a simple asset management system to track IT inventory (computers, monitors, laptops, docking stations, etc) but cant really think of a way to use more than one, maybe two patterns in it.

I just don’t have enough experience to look at the code and say “this looks like a good place for a pattern” yet. Any thoughts or suggestions?