En este sitio podrás encontrar imágenes de navidad realizados en ascii (texto)

           ,;!!!!!!;,
      .,;;!!!!!'`,uu,o$$bo.
    !!!!!!!'.e$$$$$$$$$$$$$$.
   !!!!!!! $$$$$$$$$$$$$$$$$P
   !!!!!!!,`$$$$$$$$P""`,,`"
  ;!!!!!!!!,$$$$",oed$$$$$$
 !!!!!!!!!'P",,e$$$$$$$$"'?
 `!!!!!!!! z$'J$$$$$'.,$bd$b,
  `!!!!!!';$'d$$$$$$$$$$$$$P',c,.
   !!!!!! $B,"?$$$$$P',uggg$$$$$P"
   !!!!!!.$$$$be."'zd$$$P".,uooe$$r
   `!!!',$$$$$$$$$c,"",ud$$$$$$$$$L
    !! $$$$$$$$$$$$$$$$$$$$$$$$$$$$$
    !'j$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  dMM,?$$$$$$$$$$$$$$$$$$$$$$$$$$$$P
  ?MMf:$$$$$$$$$$$$$$$$$$$$$$$$$$$'
   "" `$$$$$$$$$$$$$$$$$$$$$$$$$$F
       `3$$$$$$$$$$$$$$$$$$$$$$F
          `"$$$$$P?$$$$$$$"`
                    `""

http://www.arkworld.com/ascii/other/xmas94.htm

Mas motivos navideños de arte ascii:
Enlace 1 
Enlace 2

                .-------.
      *         | #     |    *
                |_______|         *
               _|=======|_             *
   *          [___________]
               .'       `.   *   | /  
              :   @   @   :     \|/_
              :     <     :     //   
     \~_s~-~s~s`._`...'_.'     //      *
  *   `--~-~-~~s~/`"""'  `-.  //
            /'/s/   _       `//
           / /s/   (_)       /
          ///s/     _        :  *
    *    ///s/     (_)      .'          *
        // |/`.           .'
     __//    .-''-------'`-.
      /|\  .'       _       `.      *
     / | \:        (_)        :
         :          _          :
         :         (_)         :
  *      :          _          :     *
         :         (_)         :
          :                   :
  ""'"""'""`.               .'"'"""'""'""
       jgs   `-._       _.-'
                 `"""""'