I have
But in my defence, it was 1973, we were on a caravan holiday in Rhyl and my mum had made me and my 3 sisters each a snazzy towelling bikini with groovy plastic ring detail at the sides of the pants and the middle of the top....
(not that I had anything for the top I was 9)
God those pants were saggy and full of sand after 2 mins, but it WAS pre-lycra in those days
(these days I hanker after one of those all in one victorian thingies )