In Japan, completed work on a tricycle Toilet Bike Neo, working on wastes. Project of TOTO started in 2009.
Bayk working on the compact manure and sewage waste. And if you run out of fuel it, then ... and they, the driver will be able to "fill" the bike (just kidding), which is installed on a machine with a toilet paper roll carefully stockpiled (already seriously).
On the one filling it can cover a distance of about 300 km.