The Lava Bucket is a useful tool that allows the transportation of single blocks of lava, carried by inventory. The lava bucket is created by left clicking lava with an Empty Bucket. To empty the bucket, simply left-click again where you want the liquid.
The water bucket can be used to produce obsidian by transporting lava to a body of water.
The lava can be duped by slowly spamming (0,5 second interval or more).