The Drink Tanks Growler ($55) may be one of the best friends your beer ever had. This growler is made to keep your beer or beverage cold for over 24 hours. It is built from 18/8 doubled walled, vacuum insulated stainless steel. You can easily change from a standard bale cap to the keg cap. The keg cap enables you to turn your growler into a mini keg by allowing for CO2 injection and use of the keg tap without having to open your growler. The Kickstarter is going on now, so check out Drink Tanks video and let us know what you think.