This item previously spawned during the 10K and 50K player celebratory events. Its primary and only use was to be used on Human to make Cake Platinum. This item is worth more than the stand so if you are lucky enough to get this it would be reccomended not to use it.
Celebration Diary used to have a spawn time of 4 hours at 1/10000.
-This item was unobtainable and brought back 14/2/21 it has a high value due to the spawnrates making it the rarest item in game.