A friend of mine has been working to make fuel briquets out of scrap paper, old newspapers, leaves and dried grass clipping. Last week he made a successful run of briquets. He says they burn quite well, but are a bit hard to start. It takes a hot fire.
He used a small cement mixer to mix his raw materials, which consisted mainly of old newspapers and some sawdust. He mixed them with plain water until they were mushy. He then placed 2 handfuls in the mold that he had made. The mold is then place in the press and the water squeezed out. The briquets are then removed from the mold and placed in the sun to dry.
These types of briquets have been used in third world countries for some time with good results. Overseas they make most of them out of dried vegetation. For areas in which there is a shortage of fuel for fires this is a possible solution. The press my friend is using is only his first attempt and he will go on to make it better. However, this lets you know how little it takes to make them. Be warned they are a bit labor intensive. http://e-fuelbriquetts.blogspot.com/ and http://www.paceproject.net/UserFiles/File/Urban%20Living/make%20briquettes.pdf are websites that give you more information about them.