I was reported some weeks ago that Cygwin (in Windows 8) can run Ponysay (minor bug fix in the setup has recently be made so the user of cygwin that do not have python2 install need to fix it), additionally it is also said to work one Mac OS X.

manuals/ponysay.texinfo

@@ -1551,6 +1551,7 @@ It can be downloaded at @url{https://github.com/maandree/util-say}.
 @menu
 * From upstream::               Installing manually from upstream (GitHub repository).
 * Package repositories::        Packages distributed in OS package repositories.
+* Exotic operating systems::    Installing on other OS:es than GNU.
 * Uninstalling::                Uninstalling when installed manually.
 @end menu
 
@@ -2088,6 +2089,27 @@ The spell @w{@code{util/ponysay}} (user maintained) is available in Grimoire for
 Source Mage @w{GNU/Linux}.
 
 
+@node Exotic operating systems
+@section Exotic operating systems
+@cindex exotic os:es
+
+An "exotic operating system" as a operating system that is not GNU (GNU/Linux ("Linux")
+and GNU/Hurd are GNU distors.)
+
+@cindex max os x
+Ponysay is told to be running on Mac OS X, which is Unix-like OS meaning that probably
+all future version of ponysay will be able to run without any problems.
+
+@cindex windows
+@cindex cygwin.
+Ponysay is also reported to be able to run on Windows 8 through Cygwin, provided that
+@code{python3} is installed. It will probabily also run one any other version of Windows
+through Cygwin. Additionally among the preinstalled fonts in Windows 8; Consolas 10pt,
+and larger, can be used for almost perfect ponies (they may be just a little distorted
+on the height), however Consolas is only able print the ASCII based balloons.
+
+
+
 @node Uninstalling
 @section Uninstalling
 @cindex uninstalling