PowerShell_Scripts/base/Get-RandomMacAddress.ps1

[CmdletBinding()]param(
    [string]$Delimiter=':'
)

$(0..5 | ForEach-Object {
    '{0:x}{1:x}' -f (
          Get-Random -Minimum 0 -Maximum 15
    ), (
        Get-Random -Minimum 0 -Maximum 15
    )
})  -join $Delimiter