Jewelry Boutique

ok so i know the whole destiny thing is bullshit but i was down the shore today in some store on the boardwalk and i saw these bracelets that were supposedly native american. they look like dried stems from a plant that have been woven together and on the sign it said you put it in water and then it shrinks to fit your wrist and after a while it falls off to "reveal your destiny" i know that part is silly and i don't believe it but they were cute and i like the idea that it shrinks to fit. anyway, my question is, has anyone seen these before and do you know what they're called? i was hoping maybe i could find some online. i can't go back to the store because it's too far (i was on vacation) i tried looking them up but i don't know what they're called. does anyone know?