Maxwell Mansion Online Store › Flask Jet Black, 6oz, MM Logo Engraved Flask Jet Black, 6oz, MM Logo Engraved $30.00 6oz Black Engraved with the Maxwell Mansion Logo. The perfect Maxwell Kepsake! 6oz Black Engraved with the Maxwell Mansion Logo. The perfect Maxwell Kepsake! Get notified by email when this product is in stock. Quantity: Add To Cart Added!