If you haven’t yet come up with a Christmas present for your nearest and dearest, here’s an idea: Diesel is selling the world’s most expensive t-shirts. So what’s so special about them? Gold fibres? An original artwork by Banksy? Nope. Each one shows the layout of an apartment in a new Miami residential complex – a joint venture between the brand and the company Bel-Invest. Spend up to 5.5 million dollars on a t-shirt and they’ll throw in the keys to the apartment. What better gift for the person who has everything? Plus you get a shirt to hang in the wardrobe.