Normally, I’m not a huge fan of purchasing shells, but I will take the exception once in
while if I see something cool at a bead store or at a gem and bead show. Shells have been sold and traded for use in jewelry and adornments throughout our history, so I don’t think selling shells is going away anytime soon. I just like to avoid endangered ones.
I picked up a neato Mitra shell that was cut lengthwise to show the spiral inside the shell. The Mitra Sea Snail is common, but the shell is quite beautiful and unique when polished to show off the patterns and the inside structure.
I thought it would be cool to wrap it similar to how I would wrap and secure a Matau hook style pendant necklace over a cord to stabilize it.
First, I hand braided a Kumihimo cord for the shell pendant using waxed Linhasita thread.

A simple 4 strand braid with a knotted toggle
Next, I used a little more of the waxed nylon thread to make a series of several half hitch knots over the center of the necklace cord AND over and through one of the voids in the sliced shell to hold both together. I singed and melted the ends of the binding using a Zap-It tool, or you can use a lighter (carefully- and outside!). The knots can still slide along the cord, but the cut edge of the shell can wear on the threads over time, so I like to keep the wrap centered typically. This is another excellent reason to use waxed nylon cord for this type of project.

The ridge of half hitch knots is on the top side

It took about 8 half hitches to ensure the shell was securely bound to the cord

I’m Queen of the MerPeople, you noob
I think it makes a cool surfy necklace, and a little different from the conventional. And NO, I’m not trying to appropriate anyone’s culture- don’t get up in my face about it….

Hang up the phone. NOW, Princess.