1 depending on the size of shells, bracelets or anklets, shells of about one centimeter use thin threads of three to five millimeters. It's better to use a thicker rope than a bigger shell. Leather rope, thread rope, nylon rope and elastic rope can all be made of other available materials. Glue, small iron ring, buckle, etc. 4 practices; 1 Punch holes in the shells (or directly stick them on), and pass a rope through 2 to connect multiple shells into a pattern 3. Connect the completed 1, 2 with a buckle or directly with a wire for easy collocation. For the first time, please forgive me if I am careless. I wish you success! I'll see if you can send a picture when you're done. Start (a disease)