I saw these in a few markets in Toulouse
Had some chandelier glass prisms so made some at home
One has script and stamped xxs for valentines' day
They are fun to create and my method is here, a bit brief though.
I used glossy accents by Tim Holtz as the glue and sealer.
Then wired on another glass piece and a wired loop
I just threaded ribbon through the loop, but it will be easy to add to a necklace or uses in another way.
.Let me know if you want me to show how I did them and I may do a tut.