A friend of mine worked out that if you draw a picture, and leave "blank" space (which is rendered in text as underscores) then you can carefully replace the bl

A friend of mine worked out that if you draw a picture, and leave "blank" space (which is rendered in text as underscores) then you can carefully replace the blanks with letters which appears as noise in the picture, but otherwise doesn't disturb what you drew. edit: e.g. http://pix.pe?Cttttt5tt9vt____P_5___J__v9_ttttttt9v9tttttkkkkttVSkSiUSSP5_PP_5P_5v9vt_5qSSkkktt__Hacker_News__tttttttttt___P__ttP5__ttttttttttt http://pix.pe?Cttttt5tt9vt____P_5___J__v9_ttttttt9v9tttttkkk...