Walmart offers the Stanley 64-oz. Adventure Steel Growler in Silver, model no. 10-02109-002, bundled with the Stanley 16-oz. Vacuum Mug in Navy, model no. 10-02339-002, for $25. Opt for in-store pickup to avoid the $5.97 shipping charge. That's tied with our July mention and $11 under the lowest price we could find for these items purchased separately elsewhere. The growler is dishwasher-safe and features a heavy-duty handle. The vacuum mug can keep drinks hot or cold for up to seven hours.