Found this one when looking for something to spend the $10 credit on from Good Guys after the Logitech UE Boom 2 price error. Price Hipster shows the regular price at $29. No idea on quality; but if you've still got your $10 credit to burn, what's there to lose?
Charge your devices on the spot with this black Linden Slimline Power Bank LI5KPB15, with durable aluminium casing. No matter where you are, the Power Bank is ideal for re-charging most tablets, smartphones, digital cameras and other USB devices, with the 5000mAh power capacity providing a rapid full charge and a longer battery life between charging periods. Plus, the LI5KPB15's Multiple Safety Protection feature ensures complete protection for your attached device from electrical surge, short circuits and overheating, etc and offers a usable capacity of 17.5wH, DC 5V/2000mA input and DC 5V/2100mA output. Charging your device when you're on the go is so easy with this Linden Slimline Power Bank so you never have to worry about a low battery again.
Good if you can find stock. I find these more useful than the larger sizes