Use Svendsen Tech's WriteAscii module to produce ASCII art letters from strings, in PowerShell
Online blog documentation: https://www.powershelladmin.com/wiki/Ascii_art_characters_powershell_script
PowerShell Gallery link: https://www.powershellgallery.com/packages/WriteAscii/
Example of module disovery in the PowerShell Gallery, installation, and use in a screenshot.