certain dyes are not approved by the US FDA for use around the eye area—generally those associated with certain reddish colorants, as CI 15850 or CI 15985—or on lips, generally blue, purple or some greens containing CI 77007. More stringent regulations are in place in California regarding the amount of permissible lead on cosmetic additives, as part of Proposition 65. In the European Union, all colorants listed under a CI number are allowed for use on all areas. Any paints or products which have not been formulated for use on the body should never be used for body or face painting, as these can result in serious allergic reactions. As for Mehndi, natural brown henna dyes are safe to use when mixed with ingredients such as lemon juice. Another option is Jagua, a dark indigo plant-based dye that is safe to use on the skin and is approved for cosmetic use in the EU. Body marbling Hands and faces can be marbled temporarily for events such as festivals, using a painting process similar to traditional paper marbling, in which paint is floated on water and transferred to a person's skin. Unlike the traditional oil-based technique for paper, neon or ultraviolet reactive colours are typically used, and the paint is water-based and non-toxic. Hand art "Hand art" is the application of make-up or paint to a hand to make it appear like an animal or other object. Some hand artists, like Guido Daniele, produce images that are trompe-l'œil representations of wild animals painted on people's hands. Hand artists work closely with hand models. Hand models can be booked through specialist acting and modeling agencies usually advertising under "body part model" or "hands and feet models". Body glitter The application of glitter and reflective ornaments to a woman's breasts, often in the shape of a bikini top or crop top and sometimes alongside nipple tassels, is known as glitter boobs. Like body paint, this decoration is popular with festivalgoers. Buttocks are also sometimes decorated in a similar manner, and the adornment of the a woman's pubic area is known as a vajazzle. Media Body painting features in various media. The popular TV variety show, Rowan & Martin's Laugh-In, featured bodies painted with comedic phrases and jokes during transitions. The Pillow Book, a 1996 film by Peter Greenaway, is centred on body painting. The 1990 American film Where the Heart Is featured several