Design a custom date function that showcases your coding abilities and originality. The function should take 3 inputs: the output of the Get-Date cmdlet, and two additional parameters. It must execute a distinct operation to display your inventiveness. If the date that is passed via parameter into the function is a meaningful date to you, OR if the output results in something personal - inform the user of the date/output (or in the functions' comments - if you wish, instead) and what it means to you, otherwise simply perform an action in PowerShell scripting language