I should start by saying that I'm not very creative when it comes to creating logos from scratch. A lot of these that I've used are simple recolorings that I will never claim as my own and typically just post these to our leagues' Facebook pages. Most of these were just found on Google and recolored. I don't want to claim any ownership over any of the logos.
Now that I got that out of the way, something that I've done for my fantasy leagues, and something I hope to continue to do for real life leagues is create 3d maps that shows the location of each team. I will probably start with the professional sports and then move onto college conferences. If there's one that you really want to see earlier rather than later, let me know and I'll see once what I can do.
#eastcoastbias