Intermittently some trendsetter will admit to blending a few perfumes for her personal scent and the whole furore will blow up again.
Sarah Jessica Parker (American actress)- Lovely is her first fragrance based on her own personal blend of Bonne Belle Skin Musk (now produced by Parfums de Coeur) + CDG Avignon + an unspecified Egyptian Musk oil
Arielle Dombasle (French actress / It girl) - her much complimented signature blend is Clinique Aromatics Elixir + Chanel Cuir de Russie + an unspecified White Musk
I love layering and blending my own perfumes! One of my favourite blends is Clinique Aromatics Elixir + Carven Ma Griffe, which morphs into a gorgeous soft green, smokey, leathery moss scent reminiscent of Gres Cabochard and Estee Lauder Azuree (classic formulation). As these are both HG for me you can see why I love it.
When I blend I just spritz the perfumes / oils into a vial or decant bottle and let sit for a minimum of 2 weeks, gently shaking occasionally. This allows the perfumes to create a wonderful new synergy that you cannot achieve just spritzing one over the other. The sum is much more then its parts.