Today is the 12th annual Sense of Smell day, and the Sense of Smell Institute is sponsoring events at a number of children's museums and science centers across the United States. For more information, see here.
From an article on wearable tech in NY NewsDay (sorry, link no longer working):
The microfiber in Puma's Naughty 1 Active Cat workout wear, new this season, releases a light ginseng fragrance as you sweat, masking odor for up to 30 washings.
That is not particularly appealing to me, but the technology is interesting.