This is pretty much the coolest thing I've ever made. It actually works like it did in the show. Hold this necklace up to an NFC enabled phone (pretty much all android smartphones and I think it works on iPhones now too) and watch it in action! No batteries required!
When placed on an NFC enabled device, these will automatically load the animated gif sequence created from screenshots from the show. Click this URL in your phone's browser to see what it looks like on your device: https://cdn.shopify.com/s/files/1/0019/4838/5393/products/schematic_1.gif
Here's a video of it in action!
Anyway, I'm selling them discounted from the original price at $70 each, which includes the functioning pendant with embedded RFID tag, and a stainless steel ball chain.