Minecraft wiki entry for Shelters, associated text: A room with lava, for disposing of unwanted materials. A good way to do this is to create a two block high corridor with lava at the end, and a slab block just before the lava. This results in you being able to walk up to your incinerator but not into it, eliminating fear of death. Be careful with lava around flammable materials. You may replace the lava with a cactus, or burning netherrack. Hoppers can be used for a "hopper chain," which could lead to a thrift shop, where players can be charged for taking items. Adding this to the incinerator will attach a money source. If the hopper chain is full, items will be destroyed.