For a limited time Amazon is selling the Digital Treasures Props PowerFlask Travel Charger for only $36 + free shipping. This is a leather-bound flask that will also charge your devices with a 13000mAh lithium-ion battery. If that weren't enough, the PowerFlask comes with a built-in LED flashlight.

This is a brilliant combination of products, and the lowered price makes it even better. This is part of a bigger electronics coupon sale at Amazon, if you're interested in the other products they're selling there too.