Don't Starve | Moleworm Farm with Elephant Cactus
A moleworm farm that uses about 45 moleworms (I recommend more), and elephant cactus. Yeilding 30-40 moleworms per use.
This is an effective, low-cost farm for the later game.
This was kind of an experimental layout with very little planning in mind.
Final note: I recommend placing pigskin, powdercake, and an elemental item all at once.