Abstract: The present invention relates to a protective covering for grapevines to mitigate smoke taint by filtering particles that may affect the grapes. The protective covering: comprises a microporous activated carbon material that is capable of being arranged by a user to cover at least a portion of the grapevine; and an attachment means for securing the activated carbon material to, or about, at least the portion of the grapevine.

Abstract: An article of jewelery (10; 110) for generating an attractive composite optical effect, is described. The article (10; 110) comprises a compound jewel (12; 112), such as a “Precious Jewel set within a Silver Sea”, having a first and a second portion (14, 16; 114, 116) with different optical properties and a light source, such as a coloured LEDs package (30; 122), incorporated in the article of jewellery (10; 110) for at least illuminating the first portion (14; 114) of the compound jewel (12; 112). The compound jewel (12; 112) and the light source (30; 122) are arranged to generate the composite optical effect from the artificially illuminated first portion (14; 114) and from the second portion (16; 116) when the same is naturally or artificially illuminated. Artificial illumination of the second portion (16; 116) can be provided by a further coloured LEDs package (32) incorporated in the article of jewellery (10; 110).