Thanks everyone! And Donia, yes! Buy more beads!
Reenie, I bought that cord so long ago. I *think* it's cotton cord, it may be lightly waxed but I'm not sure. Definitely can't do the burned ends to finish, I tried. Anyway, when I bought it, it was being discontinued so it was pretty cheap. I wish I would have bought more black. The beads I used have 3/32" holes and the cord is either 1mm or 1.5mm. It's so hard to tell.