"Telephone Number ‘tattoos’ to Help Protect Lost Children"

From The Evening Standard: Two London mothers have created an innovative way of keeping track of their children — by "tattooing" them with their contact details.  Entrepreneurs Lena Kyriacou and Susanna Eriksson, who are both Swedish and live in Brockley, have invented a temporary tattoo kit that enables parents to write their phone number on children in case they get lost.  ??? Her Indoors and I used to scribble our mobile numbers on our kids' arms on shopping trips etc when they were small. We did it as a matter of routine and I thought that everybody did it anyway.  All you need is a biro and for your child to keep one arm still for a few seconds. The biro is easily washed off afterwards. Sorted.