There's only so much you can do with a pair of headphones if you want them to look different. After all, you need a pair of earcups and a headband, or they're just not going to work. Or you'll end up with earbuds. The Dyson OnTrac do everything they can to be different while adhering to that headphone archetype, and I think they're one of the "funnest" sets of headphones as a result.
They're also an excellent price at the moment, thanks to a massive 50% reduction. You can grab the Dyson OnTrac for just $249 at Amazon, their lowest price ever. Even U.K. buyers can nab a deal, although it's not quite as juicy. You can buy the Dyson OnTrack for £320 at Amazon U.K. — that's a £120 saving.
They're one of the most unique-looking pairs of headphones around, but Dyson has packed plenty of goodie

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