You can buy diamond beads- they arent that much to look at. Drilled
by pulsed laser. Buckminster Fullerine is a spherical molcule, it
doesnt form anything larger than its unit cell and that is why it is
so interesting. It makes an almost perfect dry lubricant. It is by
its form a hollow bead so if you get some C nanofibres you can thread
it. Not sure who will do the job for you but theoretically you could
make the lightest necklace in the world from them.
Making a bead forming machine is not too difficult, there are 2
styles, one that is for making and polishing single spheres and ones
for production of masses of beads of a predetermined size. It would
be cheaper to import the equipment than to outsource the bead making
if you are after the latter.