The dinner parties are fun and have added bonuses for making it a big party and eating the best food, what if you could also get a small improvement to the culture bonus, or XP bonus if you are wearing a hat! Or, profession specific clothing for your class. Clothing in each slot, or even add a new item-- The Party Hat. Clothing doesnt really have a big purpose int the game except camo clothing, could help tie this stuff in more deeply.