This toilet can be erected quickly and cheaply, then removed when the festival, conference, colloquium, or camping experience is over, leaving nothing whatsoever behind, not even a turd. The 6'X16' bamboo mat is available from Home Depot or Lowes for about $20, and it is attached to six metal stakes, also available at the same stores. The humanure toilet is based on the design as depicted in the Humanure Handbook (http://www.jenkinsslate.com/store_books.html#hh), or you can see how to make a humanure toilet online at http://www.jenkinspublishing.com/sawdustoilet.html).

If you use 8' stakes, you can wire 2X2s to the top of them and then attach some sort of roofing over the toilet for use in all weather.

This bamboo toilet design was the brainchild of Larry Warnberg (http://solartoilet.com/). (less info)