It's a well-known image of an ice-cream with an amusing Einstein placed in the background.
(,
Fri 6 Dec 2013, 12:53,
archived)
his very rare in-front-of-an-ice-cream-van one
(
ferret -> twitter.com/syfyautocorrect <-,
Fri 6 Dec 2013, 13:02,
archived)