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When you're running low on fuel and it's time to get a boost, pull out one of the Power Up Travel Mugs from Just Mustard and recharge on a refreshing beverage of your choice.

These funky canisters are shaped like giant batteries and they each have a plus side which designates where the lid is located for simple administration of battery fluid to the human machine.

While your friends may be fooled by the realistic design and sit there wondering what kind of gadget is powered by such giant batteries, you will enjoy being able to get an energy boost from the piping hot coffee or frosty cool juice stored within these insulated travel mugs.