It looks like a little piece of bent metal, and its function is a complete mystery to you. Bring those "mystery tools" to the June meeting, where we will join our collective wisdom and experience. There is a very strong change that someone in the group knows exactly what "that tool" does. Although there isn't an official leader of this topic, we will all benefit from each other's knowledge.
Bring your questions and your finished projects to the meeting for show and tell!
Come join in the fun!