These rings could be relics from the Gothic era — were it not for the fact that they're made of plastic. Ukraine's Macabre Gadgets fuses polymers and crystals and, in so doing, fuses the modern and the medieval.
Sterling silver with one brass ball bearing as an added kinetic element. This ring was a custom order by a doctor's wife who wanted that her husband had a secure place to keep his ring, when he went into surgery and had to scrub in.
A unique hand made 'Memento Mori' ring by Kim Eric Lilot in 18 karat yellow gold. Cleverly inlaid with a three-dimensional base relief carving of the human brain carved in Australian Fire Opal (source: Coober Pedy Mine) by the Gem Carver Sean Davis.