The hectograph is a printing process that involves transfer of an original, prepared with special inks. Although the hectograph process is obsolete for printing on paper, it is still used to make temporary tattoos on skin (Alisov, M.
http://news.google.com/newspapers?nid=894&dat=19960725&id=XxsOAAAAIBAJ&sjid=jH0DAAAAIBAJ&pg=3385,3459560 Hectograph - Peace Corps instructions *one box of gelatin, *one pint of glycerin, *cheesecloth Heat the gelatin and the glycerin for seven minutes and skim any scum off the surface, stirring occasionally. Pour this mixture into the flat plan, straining it through the cheesecloth to eliminate any dirt particles. Allow to sit for 24 hrs.