My wife recently started an Etsy store, and so naturally I typed ‘guitar’ in the search box. Among the items that came up were these beautiful handmade guitar picks of Ebony, Cocobolo, Abalone, Bone, Horn, and Snakewood by Brossard: 
I’d be into wearing these around my neck, and they do sell leather necklaces on the site. But I’ve never used these kinds of picks on a guitar & I imagine it would take some getting used to. Still, these will make nice gifts & I’m into supporting small business so I wanted to pass this along. Check ‘em out!
L-R: Unused Wheatware Pick, Used Wheatware Pick (2 weeks), Used Fender Pick (10 yrs) — Note how dramatically the shape of the used Wheatware pick has changed in just 2 weeks of use.