blackster

Item, that syx persons of good report, fame, creditt, skill and understanding shal be appoynted by Mr Maiour and th'aldermen to be searchers and sealers of the seid clothes and other comodityes as also to make searche in the howse or howses of all dyers and calendres, blacksters and sheremen or else wheare according to ye letters patentes for the better fynding owt of defaultes comytted contrarye to the fourme aboveseid, […]

A "blackster" (a fan of heavy metal, the satanic kind) isn't going to join a stuffed animal club, of course, but he does listen to music and try to translate the words of the songs.