Harry Potter Shampoo
All things being equal, any shampoo that's named after Harry Potter, has a big lightning bolt-shaped hole through the middle of it, and smells like raspberries, has an obvious edge when it comes to winning a Self-Gratification Award.
You really can't do anything special with this shampoo. Like turn yourself invisible or make your earlobes glow in the dark. But hell, it says "Harry Potter" on the label and you can satisfy your neurosis for HP-related merchandise.
One wonders if they're going to come out with a Harry Potter anti-dandruff shampoo. If they do, they could call it "Scars and Shoulders". It would be perfect for washing that Voldemort right out of your hair.
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