To ensure something fun for the New Years, you should create a ban bazaar. Basically, this would have like a massive store that has limited stocks (100 of each item per hour) of the following items:
Ban Hammer: Anyone you hit with the ban hammer gets banned 5 hours.
A Fake Recruitment Ban slip: Looks like a Recruit request but if you press "yes", you get banned 5 hours.
A Fake Invite to House Ban Slip: Same as a Fake Recruitment Ban slip except with an invitation to house.
Ban bomb: This is a massive bomb that explodes up to 5 cm radius and anyone that gets affected by this bomb gets banned 5 hours.
Ban arrows: These are arrows that when struck, you get banned 1 hour.
De-Banitizer: One De-Banitizer costs 100 gralats and each will save 1 hour of your ban.
BANter: This slip is used as a report system except for people with bad humor. If someone says a bad joke AND get reported through the BANter, they get banned 6 hours