Song/poem writing help?

I'm doing a project on the Odyssey by Homer. There are sea nymphs called sirens, sang songs that lured men to their death. I have to write a song/poem tomorrow that bribes the opposite to do something that they wouldn't normally want to do. Our English teacher's example was to maybe write a poem/song that makes a guy want to go shoe shopping with a girl. The thing is, I'm not great on writing poems (or songs) can anyone help me?