Although I cannot see the detail of the necklace that well, I bet you could easily make both from supplies bought at craft stores - Hobby Lobby, Michael's etc. The shorter one looks like a simple shell pendant of some sort on suede or leather and the second looks like it is made from shell beads, too. Not sure on the pendant of that one. (I am a jewelry designer and there are some great online stores I could send you to, if needed.) Give it a try! Although I will warn you, it is addictive!