The Amiga platform never came with that fancy banner tool that was available on UNIX systems, I was massively impressed by it (I have no idea why!), so I decided to write my own. I later converted it for MS-DOS and about ten years later I made it actually compile in GNU’s cc.
The source code is very BASIC, lacking in switch blocks and even contains a goto for good measure. Inferior to the Linux banner in every way, the output looks like this:
gaz@desktop:~/svn/misc/tools/banner/SOURCE$ ./banner Test ###### ###### ##### ###### ## ## ## ## ## ## ## ### ## ## ##### ##### ## ## ## #### ## ## ## ## ## ## ## ###### ##### ##
I doubt it is useful to anyone, but you can get the source code and a Windows binary anyway.