So far, I have not seen any. I have not seen people walking around wearing BO T-shirts or buttons. I saw a few the day of the election and the day after, but that was it.
What I have seen lately (not the day after the election but the past few days) is people trying to make eye contact with me and smile at me, and try to get some sort of emotional reaction from me. That did not happen after the 2008 election. People seem "friendly" in some weird way. Maybe it's just my general neighborhood. These are people who ordinarily would go about their daily business any other time. It's very strange.
Perhaps a mix of “Are we still friends?” and “What an ordeal!”