The Metamorphosis Candle Holder from Bomma showcases geometric cut patterns carved into mouth-blown crystal. Master cutters at Nižbor glassworks apply Rony Plesl's intricate designs through careful manual work that spans extended periods. The cutting adds faceted planes to the smooth glass surface, creating angular geometry that interacts with light from both candles and surrounding sources. Minor differences in the pattern reveal the hand-cut nature, where precision work over hours produces pieces that appear uniform but carry subtle variations.