If you're asking about a necklace, that's a piece of jewelry that is worn around the neck.
Could you please clarify what you meant?
Perhaps you can provide more context or a description of what you're looking for. For example:
* What is the decal supposed to look like?
* What is the purpose of the decal?
* Is it for a specific person or occasion?
Once I have more information, I can give you a more accurate answer.