Here is a sketch of my future worm bins. Curious to know what you think. The drawers underneath are suppose to be removeable so getting the castings will be easy. If that is necessary. I have never done this so I don't even know if they are needed. The idea is the "bedding" will be in the drawers where they leave their castings, I saw on T.V. (bear with me now) that they LOVE old bread, I just happen to have easy access to old bread for cheap. I figured that will draw them up so that I don't have to worry too much about screening them out. There would be a screen base above the drawers, the drawing is a little messed up, that will keep the castings and food seperated. Again, I have never done this and am basing it off of videos, websites, and some shows on T.V. If I remember right they eat Cow s#*% too right?