The mod adds the Smoking Pipe item. The item can be crafted using 3 planks, one gunpowder, and a stick. The crafting recipe looks like this:
The item itself is purely visual. When you smoke, cool particle effects will appear. To make this item useful, you can insert certain items into it. The list of items is 100% configurable, as it is stored in a JSON file. Smoking certain items will give you potion effects. Smokable items will have a tooltip indicating this. The default list of items looks like this:
