All you do is get a kit, imprint your lover's (or even your own) fingers, send it off, and get a custom fingerprint ring in your choice of metals. The message the maker of these trinkets wants to send is that "your lover touching you, holding your finger, always with you," but all I'm hearing is "make sure it's not her sister...make sure it's not her sister!" [Etsy via Make]

The ring hasn't been discovered till now because it's so diffuse that it reflects very little sunlight. That makes it undetectable by optical telescopes. The particles in it, however, glow with heat radiation, which was captured by the Spitzer's infrared instruments.

This image is an artist representation of what Spitzer's discovered, showing us, once again, that we are still bloody clueless when it comes to almost everything around us. I can't wait to see the actual image. [NASA]

It's the perfect gift for that special someone. That same special someone who's willing to wait hours and hours in line with you at a premiere so you can go into the theater to watch Transformers: Revenge of the Fallen and ogle Megan Fox half-naked on a motorcycle. [Geekologie]

According to researcher Saori Noda—who works for Denso Corporation, a big automotive electronics supplier in Japan—they are "working to make it smaller and less noticeable." This doesn't explain why they decided to make it the shape of a big honkin' cat face, but sounds good enough to us.

The device can detect tiny electrical currents going around the body. To work, it generates a current that goes into the index finger. When you press your finger and thumb together, the ring detects a closed circuit and interprets it as a signal, sending a device a control order wirelessly.

According to Noda, this could be used to control any kind of device without touching it, including phones, music players, cars, and whatever you can imagine. [Pink Tentacle]

Shown last week at the American Physical Society, the ring was actually produced in the University of Melbourne, and is crafted from synthetic diamond material. It's designed to be a component in a device that detects single photons, which in turn has a role to play in quantum computing. That's the nifty technology that uses strange things like photon-entanglement and data bits that are neither zero or one. One day it'll may make super-computers even more ridiculously powerful than they already are, for, you know, all sorts of cryptography and other funky math.

If that's too much science for you, think of the ring as just an amazing bit of engineering that is one twentieth the width of a single human hair. Neat, eh? [Live Science]

The rings are available in "gold" or "silver," and cost $29.95 each. Don't worry if you're a little trigger happy —refills are only $7.95. [Protect Yourself Direct]

The only downside is you'll have to actually carve your own ring out of resin, something that's pretty tough for us nerds to do. But the good news is that when you're done, the fingers to ring ratio will probably be closer to 1:1 than when you started. Still, beats the old guide of Step 1: Find the Lantern Corps. – Jason Chen

Instructables [via MAKE]

design page [Design Boom via Random Good Stuff]

There's only around 30,000 users now, plus it costs $49. That means your chances of meeting someone with this are slim to ridiculously slim. But it does make for a nice conversation starter. That's right ladies, this ring says I have tons of disposable income. – Jason Chen

Product Page [Firebox via Shiny Shiny via uber gizmo]

Gold Turntable Ring [In Style]

These rings start at $50, and have just enough space for one Viagra pill. Just flip the top, ingest, and get to whatever/whoever it is you're doing. Just remember to refill it after use, or else you'll be mighty disappointed the next time the UPS girl comes. – Jason Chen

Viagra Ring [via Oh Gizmo]