A nice jar with beads!
I made a chain on it, but that's not necessary.
You also need such a pin, but I don't know how it's called, so I made a picture of it.
Fill your jar with beads.
Make a hole into the cork with the needle. Then put the pin in it.
Glue the pin into the cork. You can cut it if it's too long.
Attach your chain to the jar, and you're ready!