Butter Churner

 is a farming structure made by Tinkers.

Source
is crafted by Novice Tinker using:
 * 1x
 * 1x
 * 1x
 * 1x
 * 1x
 * 1x
 * 1x
 * 1x

Use
can be placed on a farm to automatically produce 1x from 1x.

The player can also interact with to manually produce 1x from 2x.

occupies 2x2 area when placed on the player's farm.