Resources
Writing the international signs
The international signs can be written and read by means of the signograms. Every signogram is a set of lines that represents a certain sign.
You can use the signograms by yourself in any text program, making CLIC here to download the corresponding fonts: http://www.web07.yogote.net/FONTE_YoGoTe/FontsI.htm
If you want to write the signs directly on paper, clic here:
http://poesiamerica.yogote.net/index.php?option=com_content&view=article&id=138&Itemid=87