We have a new composter for our kitchen waste!! So exciting! We have two other composting systems, both of which we built ourselves. The first is for dog waste.... it consists of a buried garbage can with the bottom cut out and a lid. We fill it up with the obvious items and sometimes add the ashes from our fire pit to keep the smell down and dry it out. It works.
Our final composter is for yard stuff and consists of some skids we got for free, nailed together into a square box for anything that doesn't fit the other two!