Hm, beadwork. Is any1 here good at making their own glass beads necklaces?

i saw a friend of mine at a party the other night and, her dress was plain simple black but her accessories was lovely! i complemented and asked where she got it from and she said she makes them herself. now i interested but a bit unsure on how to go about it. i just wasnt to make neclace to start with, for they seem the most straightforward. Just one string long necklace but it would be nice if the glass beads that makes up the necklace was my choice, you know. if this is a hobby to anyone out there, can you help. what string do i need? are there special strings? thanks in advance.