So you know though, anything with any of these pairings will make me ridiculously happy!
Songs and quotes aren't regulated to one particular fandom. If you use any, feel free to mix and match as you see fit.
I'm pretty easy to please, so if you have another idea you'd like to explore, please feel free to! I find it next to impossible to find works for these pairings, so it'd be hard for you to go wrong with whatever you create.
Whatever you decide to create, I hope you have fun making it!