Here's a black, thermal mug, featuring an image of Green Lantern flying about, based on the hit, live action, Green Lantern movie!  Oh, and the best part is....the image changes after filling the mug with hot liquid!  Yep, it's a color changing mug!  Before hot liquid, it was just plain old Green Lantern flying along.  Now, having filled it with hot liquid, we notice the appearance of the Green Lantern symbol and logo right behind our heroic, human Green Lantern!  Oh, and for you own safety and enjoyment-

This Green Lantern Mug is NOT DISHWASHER SAFE, nor is microwave safe... and don't fill it with scalding lava, either.  And don't feed it after midnight.  Okay, you can do the last one.