Party buses are generally communal spaces which essentially means that anything you bring along with you will likely end up being used by quite a few other people in the bus as well. A big part of the reason what that is the case has to do with the fact that no one will ever be able to think of every single thing that would be required on a party bus, so the next best thing that they can possibly do is to figure out how they can pool their resources together in some way, shape or form at any given point in time.
What you can bring to the party bus will impact not just your experience but that of the people that are around you as well. You can make the party bus Wichita Kansas a much better place by bringing some deodorant along, for example.
People will start to smell really bad after spending a few hours in a party bus, and since there is no way for them to end up showering the next best thing would be to spray some deodorant on to keep the smell at bay.
You can use this on yourself as well since you probably need it given that you are in the same party bus as everyone else. Cracking a window open every once in a while can bring a lot of fresh air in as well which can be great for helping you keep the interior of the party bus smelling rather neutral rather than absorbing the various body odors that can be pretty terrible once you start to spend over six to eight hours in an enclosed space.