Take an existing piece of mucis and and change the instrumentation. This could mean taking an a capella piece, and turning it into a piece for string quartet, or taking a beethoven piece and adapting it for electric guitar bass and drums. You could even take the alma matar and turn it into a bag pipes piece (im sure the school would love that). Once you’ve change up the piece, try playing it, blog about your choices and the thinking behind them, or post a recording on soundcloud.