I use one of those gummy erasers I make baptismal gown and 1st communion dresses andmake all my own lace I use the silver to mark on the satin or taffata so I know where all the lace and ribbon roses and ribbons and if the gummy erasers get the marks off those it should off cottons the 1st communion dress I am working on now the taffata was 26dollars a yd and the satin was 28 dolllars a yd. if they didn't work it would ruin the gowns. try on a scrap first and draw very light.I know that helps I hope it works well for you.
good luck
Aunt Patti