Answer:
A tiny bead, like fragile glass, strung along a cord of grass.
What sphinxes employ and players enjoy.
It belongs to you, but other people use it more than you do. What is it?
You might accuse someone living with a stolen identity of being this.
What is something you can hold without ever touching?
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?