Canon Thermal Travel Mug EF 70-200 f/4.0 L IS USM Lens

Apparently, this mug is real... check it out at Vistek. *update* look like the mug is sold out... guess you have to try ebay if you wish to get one...

Video of the mug

And here are some of the fake mug circulating around the net...

Via Doobybrain.

Via Flickr.