I wanted just to make a lousy banner for the image. But just using the banner command on a *nix workstation seemed a bit to boring. So I started writing a basic Write-Banner command. You can input text and just for show I also added foregroundcolor and backgroundcolor support.
I have uploaded the script to the Technet Galleries. Please download the script from: Technet Galleries Download
A sample that my WordPress did not mangle..
. C:\Write-Banner.ps1
Write-Banner 'http://virot.eu'