With seemingly unlimited celestial power, it only makes sense that Thor should share a little bit of the Mjölnir Hammer's capabilities with humanity when he's not battling Loki or alien invaders. After all, a dead smartphone can be just as catastrophic to some people as the world ending. And while it might not be Thor's exact hammer, this version of the Mjölnir is far more useful to humans addicted to their phones.
Packing a 2600mAh, 5200mAh, or a whopping 10,400mAh battery (the latter needs a full ten hours to recharge) this mini-Mjölnir features a microUSB and a full-sized 2.1A USB port that can even charge tablets. It's also got light-up LEDs and built-in sound effects to satisfy cosplayers. But unfortunately the most powerful version tops out at a steep £80 (not including shipping), so hopefully you've got a S.H.I.E.L.D.-sized budget. [InfoThink via Everything USB]