It’s 2008. I’m ten years old. I have a henna cone in my hand and I’m not afraid to use it. I squeeze unrecognisable flowers onto the women, and I paint wonky footballs and messy rockets onto the boys.

So much more than intricate dyed patterns decorated over hands, feet, arms and legs, Henna is the time-honoured custom rooted in the cultural traditions of South Asia, the Middle East, and North ...