 The earlier 1960s Mk II units were made for the home and the characteristics of the instrument attracted a number of celebrities . Among the early Mellotron owners were Princess Margaret , Peter Sellers , King Hussein of Jordan and Scientology founder L. Ron Hubbard ( whose Mellotron is now installed in the Church of Scientology 's head UK office at Saint Hill Manor ) . According to Robin Douglas @-@ Home , Princess Margaret " adored it ; he ( Lord Snowdon ) positively loathed it . " 
