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You may be familiar with the “400 Costumes to Die For” promo we did last year. This year we've taken it to the next level: an iPhone app.

Last year's piece consisted of a pair of custom-made, 20-sided dice – one with 20 modifiers, the other with 20 nouns – that together offer 400 possible original costume combinations.

The new “Costume Decider” app gives you even more options — the better to save you the embarrassment of showing up at a Halloween party in the same old tired costume. Give the wheels a spin for one of 625 fiendishly original costume ideas.

Don’t be afraid. Get it now.