I use Griffin beading silk which comes in different sizes and different colours. You need to measure the size of the pearl hole to work out which size thread you need, eg. Size 1 = 0.35mm thickness. I have a variety of sizes and colours but I haven't got around to listing them yet. Let me know if you are interested and I will see if I have what you need and list it for you. There is 2 metres per pack. Do you have a knotting awl or pliers?