"We're all mad here. I'm mad, you're mad."
Inspired by the titular cat from Lewis Carroll's beautiful "Alice in Wonderland". Lock & Key Curiosities is not responsible if your heart occasionally vanishes, only to reappear sometime later. May or may not cause you to think in riddles. Probably best not to wear it to tea with the Queen of Hearts, either.
Available here: https://www.etsy.com/listing/238688306/cheshire-cat-heart?ref=related-7