It's a headpiece that keeps elaborate hairdos in place once the hair is wrapped around it.

Consulting Dectective (Tom Trager), S

It used to be part of the Barbie Torture Chamber Play Set. Not pictured are the color-coordinated tools and outfit for the doll.

Consulting Detective (by Tom Trager) S

It's one of many distraction devices used by pickpockets. You hand it to someone and ask them what it is. While they're staring at it in confusion, you rob them.

Consulting Detective (by Tom Trager) S

Before the Heimlich Maneuver was perfected, this was one of many failed attempts to stop choking. You had to shove it down someone's throat to extract the object. It was especially popular during Thanksgiving because it could double as a flowerholder in a centerpiece when not in use.
For the Sake of an Angel, Ladies Fit M.

It's the equivalent of a can opener for vampires. You put the spikes around the neck and squeeze. Voila!

For the Sake of an Angel, ladies fit M