"Harry Potter: The Exhibition" arrived at the Museum of Science in October, much to the delight of wide-eyed urchins, fantasy fans, and twenty-somethings who never got over their childhood dreams of receiving a Hogwarts letter (not to mention Phoenix art critics). Since then, visitors to the exhibit (on display through February 21) have noted that although the show is sparkling with enchantment and imagination and all that good stuff, it’s kinda lacking on the, well, science.

Back in 2007, My DNA Fragrance began its production of perfumes and colognes engineered from customers' genetic make-up. You swab yourself, send in the sample, and wait for the experts to ... well, actually, it's not clear what those perfume experts are doing after you mail that sample in. Their press release says it's a "personalized fragrance .