The spikes were from ebay, you can get them very very cheap from China. Just search for them, you'll see it's easy if you have paypal, and they have all kinds of differents studs and spikes! :)
- Gather your materials. Arrange the spikes like you want them. This picture is actually from my bracelet tutorial, so they're lying differently than in the actual necklace.
- Attach them to the chain with jump rings.
- Attach the clasp
And you're done!