This is what the back of the beads look like:
To turn them into decorations for my hearing aids we used a bit of red wire from the bead shop, and passed it through the gaps at the back, like this,
We piece at the back is very soft, so you can bend it easily to put the wire through. You have to leave enough space to put the tube of the hearing aid through. Then you make a knot with the wire, and cut the ends off so they don't scratch your ears.
And this is what the decorations look like,
Do you like them?