Select "volunteers" from a list or file.

volunteer.ps1

function Get-Volunteers {
    [CmdletBinding()]
    param(
        [int]$count = 1,
        [array]$values = @(),
        [string]$file = ""
    )

    if ($file -ne "") {
        Get-Content $file | % { $values += $_ }
    }

    Write-Verbose "Volunteer Pool"
    Write-Verbose "========================="
    $values | Write-Verbose

    $values | Get-Random -Count $count
}