A round-up of useful selfie stick reviews by mums who tested out a selfie stick for themselves. What is a selfie stick? So, you may have seen the craze for selfie sticks and been wondering whether to buy one. Well, a selfie stick is an extendable stick with a holder for your mobile phone that allows you to take self portraits aka selfies as well as group shots more easily. No more trying to cram everything by putting your arm out…