As the bacteria responsible for the tooth decay are sealed in, and deprived of nutrients, the act of sealing the decaying tooth with the metal cap should prevent the decay from spreading, at least until the baby tooth is shed at around 10 years of age.

BBC: Children could be spared dentists' drill

But what makes Double Cross Vodka really special as a gift is its super-cool bottle, unlike any other spirit container, flat and rectangular, made from high-end French crystal, laser engraved with traditional Slovakian poetry on the back and the Double Cross logo on the front, and topped with a polished metal snap-on rectangular cap.

FORBES: Gifts You Can Monogram, Personalize And Make Your Own

In the 91 x 72 cm portrait, Rembrandt is wearing a black velvet cap with two ostrich feathers, a decorative metal band worn round the neck and a short, decorated velvet cape.

BBC: Abbey painting 'is Rembrandt self portrait'