Nostalgia-inspired products are a dime a dozen, and even those stamped with some of your favourite childhood games might seem rote. But here, we see a unique take on the idea: depending on temperature, these mugs – with designs based on classic ‘80s arcade games – change their image, as displayed in the above photo. Get one for yourself, a geeky friend or a kid who’s grown up with a little too much Grand Theft Auto.

$7.99 each
 ThinkGeek