Meet the Family with the Secret Recipe for making London’s Iconic Blue Plaques By MessyNessy October 29, 2015 SHARE FacebookF TwitterT PinterestP Jimi Hendrix has one. Virginia Woolf has one. So does Karl Marx. Since 1984 all the plaques have been hand made by just one family– and they’re pretty adorable… ADVERTISEMENT Via Huck Magazine. ADVERTISEMENT SHARE FacebookF TwitterT PinterestP