Get some gallon jugs or bigger. Add some charred oak chips from Jim Beam, or another distiller, and fill them up with the whiskey that needs to be aged. Let it breath a little, and keep it in a dark place. As the whiskey is pulled through the chars and expelled, it ages, and it happens much quicker than it does in a charred barrel.
Eh. If I want bourbon I'll buy a bottle of Dickel. Rather have cognac if there's a choice.