Spring hinges

I have an idea for sets of small wood closures, with beads hanging
off or not, for the ends of dreadlocks, or skinny braids, and i
thought i might use tiny spring hinges, is it difficult to make them?
Does anyone know where a range of strengths, of stock spring hinges
might be found, for anything from bangles to hair accessories, i
would be embedding the hinge in the wood things that i carve,
steel might be ok, do they come in silver?? I would like make them
if they were strong enough, if i could.