There could be a petting zoo, with camels and rhinos, and it could be outside, covid-safe, and number restrictive.
A professional bubble blower would set an excellent mood of victory.
Perhaps a large mechanical bull would provide a thrill.
Fireworks of varying size would inspire great awe and joy.
A series of balloon parade floats as seen in the macy's day parade would be a great way to cap off the year. And they could even be made to ram into each other in the air.
Dunking booth and professors take turns being dunked
Clowns and stilt walkers, people being shot out of canons!
Sword Swallowers fit the mood symbolically, and they do it with a smile.