Every semester, the new girls in our chapter give a presentation where they present a big class paddle that each new member class made together along with presenting paddles to our bigs, and our bigs also give paddles to us. My class made a powerpoint slideshow with music showing a bunch of pictures throughout the semester that we were all in, then we had a game. And we also read what we wrote on the back of our class paddle. Here's a pic with my new member class, along with our paddles that we got and our class paddle:
They are only used for decoration.