This is a proposal for a usable item that acts as a bucket that can endlessly fill with liquids, but cannot place liquids. I would add a crafting recipe of a stack of buckets at a Crystal Ball (making it a hard mode item), similar to the Endless Quiver or Musket Pouch. This would create an alternative means to remove liquid that doesn't require fishing -- in order to balance sponges I would propose adding a 'water-absorbent sponge' which can be combined with the lava-absorbent sponge to make the super-absorbent sponge, which should be updated to have the same capability to be used with any liquid. Dry bombs would remain as they are, as a pre-hardmode variant that is more cumbersome to deal with.
Note: An alternative naming scheme could be considered, as generally a 'bottomless' bucket should not be capable of holding liquid, and an additional item named 'bottomless bucket' could be added that is crafted from a single bucket, with the unfortunate effect of immediately placing any liquid at the players feet. These items could share the same name, but have alternate descriptions: 'A bucket with a hole in it.' vs 'Contains an endless amount of space.', although this might cause confusion.
Note: An alternative naming scheme could be considered, as generally a 'bottomless' bucket should not be capable of holding liquid, and an additional item named 'bottomless bucket' could be added that is crafted from a single bucket, with the unfortunate effect of immediately placing any liquid at the players feet. These items could share the same name, but have alternate descriptions: 'A bucket with a hole in it.' vs 'Contains an endless amount of space.', although this might cause confusion.
