Hot stuff is a piece of jewellery that can also can keep a person warm using a chemical reaction, akin to a wearable heat pillow. It is made from a plastic hose, aluminium, Delrin, 925 silver, stainless steel, 9ct yellow gold and sodium acetate.
To keep a person warm an exothermic reaction is set off in the piece of jewellery. The reaction keeps on going for 10-20 minutes and warms the wearer for that long. Once the reaction is complete the jewellery can be "re-set" by boiling in water for 5-10 minutes.
As well as keeping a person warm the reaction also changes the jewellery from being transparent to contain white crystals giving the piece a new look. This also changes back to clear when boiled.
A video of the reaction is coming soon, until then enjoy these pictures