Creating gobbledygook text

[Duncan]

I need to select text and change it to nonsense Latin or whatever. I have
tried changing it to Symbol but it looks odd and sometimes when printed some
odds characters show. I don't want to have to cut and paste from elsewhere
to achieve the result.

Is there any way I can select text and change to something unreadable but
still maintain the overall look of the layout?

Help appreciated.

Duncan