There's also a few more less-expensive hands-on MAD events in Oct/Nov in The Olfactory Engineering Series The first is the same weekend as Sniffapalooza.
The Museum is organizing a sniffing event in NYC in September
More interestingly, C.Burr is hosting a pay-as-you-wish opening event:
Friday, November 16, 2012 - 6:30 pm Lobby, MAD
Discover The Art of Scent with curator Chandler Burr as your guide. As he discusses the works showcased in this exhibition, Burr will illuminate the breakthrough process of creating this first-of-its-kind presentation of olfactory art.
And the night before there's a talk with Burr and Sumit Bhasin: The Theater at MAD
Thursday, November 15, 2012 - 7:30 pm,
$15 general / $10 members
Tracing the history of raw materials, their use, and the evolution of natural and synthetic materials in scent, Chandler Burr, curator of the recently opened exhibition Scent, joins leading figure in the world of perfume, Sumit Bhasin, for an evening long participatory lecture. Presenting the audience with samples of these raw materials, Burr and Bhasin will discuss the astonishing growth of the olfactory palette and the way these new materials have changed the works of scent art.
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Potentially more on-topic:
After rereading Ellena's little book on perfume, if this is his work, I will find a hat and eat it.