What is the best way to mess with upstairs neighbors

I live in a two unit apartment and have a group of girls living upstairs. They constantly throw parties and have the music blasting. It was pretty bad last semester but recently they got a new speaker which is exponentially louder. Before anyone says that I’m being a karen or whatever, they were blasting music for all of finals and continued to after we asked them to quiet down. Like bro do you not have exams. They always invite us but they’re not the most enjoyable people to be around in the first place. I know i’m just complaining but I really don’t know what else to do. I’m willing to do anything short of harming their personal property or them.