Building community with a splitter

I've decided that I'm buying a bunch of these if I can. It occurred to me a few days ago that while we are traveling, it would be so fun to listen to music with another person. I did this with K when we went to Boot Camp last summer. And I'm thinking that it would be fun to do it again with different people on our team. Much like trading music, but listening together. The overwhelming principle - building community among the team.