http://fun4word.altervista.org/
Fun4Word is an add-in (that is an addition) for Microsoft Word
It integrates with Word through a menù.
Thanks to it amusing and funny formattings can be applied to parts of selected text or to a whole document.
Fun4Word is able to write mirror words or whole sentences, to mix the words of a sentence, to remove all the vowels from the words, to color every word of a document of a different color, to give an aspect to wave to a sentence, to cipher the text, etc. etc…
Fun4Word has 23 of these functions, had a good time trying their all.
(tested by me along 3 weeks: no problems, no spywares etcetera )