Alternative ways to charge iPhone 5?

My daughter's iPhone 5 charger is broken and the only other charger we have to fit this phone is the iPad 4th Gen. Currently, the iPad is on low battery and is being charged. My daughter is going out and I always like her to have her phone charged when she's out. Are there any other ways to charge this phone?

We also have an iPod 4th Gen and iPad 1st Gen but these both require the 8 pin adaptor, and the iPhone requires Lightning.

My daughter's going to town tomorrow after school to get a new charger. Which shops would sell these chargers? We have an O2 shop (phone is on O2) and a Stormfront store (Apple reseller)

Thanks!

Added (1). We also have a Carphone Warehouse

Any store that sells the iPhone 5 will have a charger for it