Answer:
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
They come out at night without being called, and are lost in the day without being stolen. What are they?
Can describe a distress signal or flashy accessories.
Some keep it in a dumpster while others keep it in their trunk.
I have a pet, his body is full of coins
People take me on walks and I run and have fun. What am I?