A big brown lava key chain, with a thick rectangle of real lava from a volcano, wrapped in sterling silver wire to give you a geeky way to keep your keys together. Key chains make great stocking stuffers, as you can use them as bag charms as well. 

Each piece of basalt is roughly 5 cm by 4 cm (2 by 1 2/3 inches) long and wide, and 1.5 cm (over 1/2 inch) thick. Easy to find in your pocket or briefcase! The stones aren't quite as heavy as you might think (around 28 grams/1 ounce) because of the holes created by the gases from the volcanic vent. 

I attached the lava to the handmade stainless steel key chain using sterling silver wire, then placed the key ring on the other end. Stretched out, the entire key chain runs about 12 cm (nearly 5 inches)