Making Pink Shamballa Style Bracelets?

I make my own jewellery (including shamballa type bracelets) and have been asked to make a pink one. Easy enough I thought until...it occurred to me that where I usually use the heat from a lighter to slightly melt and hold the cord shut and stop the bracelet coming undone, on a baby pink bracelet this would leave a black dot. Does anyone know how else to seal it closed? I thought maybe epoxy glue but am unsure as to it's long-term staying power? Thanks all!