Co-workers can be so annoying. They take the last coffee and then they even take your favourite mug. Lucky then that this Ninja Mug is invisible, so nobody will be able to steal it from you!

... Alright, it isn't invisible. That would be silly anyway, because you'll have no chance to find your own coffee. However, what you can see is even more awesome. ;)

The mug itself is simple, just two furious eyes warn everybody from taking your favourite hot beverage. For a better camouflage and long lasting heat, you can dress the mug with a ninja mask. Thanks to the hook-and-loop-fastener, it's easy to put on and to wash it. :) In addition, the mask has a pocket for the spoon with a sword handle. So everybody can see the ninja is ready to pull out his weapon.

As we all know, ninjas are well prepared for every situation, no matter if for sneaky attacks or sensible surfaces. That's why a throwing star or Shuriken coaster made of ceramic completes the set.

Now you just have to choose a proper ninja drink. And don't forget the mean glance and a few smooth jumps while carrying the mug to your desk. Then just stir a little bit and never loose sight of your new mug.