$BTC
Not long after buying and publicly consuming a $6.2m banana as part of an artworld stunt, Chinese crypto entrepreneur Justin Sun made another eye-catching purchase, investing $30m ($23.5m) into a cryptocurrency firm called World Liberty Financial.
The company had foundered since its October launch, investors seemingly leery of its prospects and its terms.
But it boasted a potentially enticing feature: the chance to do business with a firm partnering with and promoted by none other than Donald Trump.
Mr Sun's investment tipped the company over the threshold that allowed the president-elect to begin profiting from the venture. Trump and his family are now in the position to collect roughly $20m - and potentially far more.
