Advancement for obtaining all "Bucket of" items: "Bucket List"

My favorite advancements are the ones that require the player to do something silly they wouldn't do otherwise, like levitating 50 blocks, defeating every kind of hostile mob, or hitting a Ghast with its own fireball. With how many things you can put in a Bucket now (10, count 'em!), there is prime material for a new advancement. The parent achievement would be Bukkit Bukkit, obviously. The requirement would be to have all filled Bucket items in your inventory. These include liquids, powder snow, milk, and aquatic mobs. As for the name, I would personally suggest "Bucket List", "Bucketologist", or "Filled With Determination".