For those old-skool gamers looking to relive the past without pouring their college funds into a coin slot, there is this, the Space Invaders Mini Arcade Keychain from Excalibur Electronics. While it may be gimmicky in the extreme and a blatant cash in on the endearing popularity of a genuine gaming great, this baby is guaranteed to cut down the monotony of bus and train journeys whilst also keeping your house and car keys company when you’re busy with the rest of the day’s activities.