We have a worm farm as of yesterday, since we couldn't put our kitchen scraps on the compost heap because a couple of rats thought it was just for them. We decided to get a worm farm. A 'Can O Worms' worm farm to be exact, a local supplier dropped off the plastic farm with an ice cream container of worms. A whole new learning curve of course, keeping several thousand compost worms happy :) The theory is you get 'worm tea' as well as the worm castings that are great for everything that grows.
Can O Worms worm farm all ready to go
A circle of black plastic under a circle of old coffee sack to keep the whole thing moist