Funny Toilet

- Composting toilet: Very commonly found in camping grounds in Europe, and large climbing parks. Also found in some modern ecologically designed buildings.
- Urine-diverting & dry composting: a source-separation toilet that keeps urine and feces separate and simplifies the composting process. Can also be called an eco-san (from ecological sanitation) toilet, and is a viable alternative to flush sanitation in urban areas.
- Incinerating toilet
- Tree bog, a system for converting human faeces to biomass