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Former US President Donald Trump has launched a collection of digital trading cards depicting him in various guises including a superhero, astronaut and Nascar driver.

Trump said "These limited edition cards feature amazing ART of my Life & Career!" Last month the billionaire launched his third bid for the White House.

Some commentators had expected him to potentially name a running mate for his presidential campaign. Instead, Mr Trump posted a promotional video on his social-media platform, Truth Social.

He added that the cards, costing $99 (£81) each, "would make a great Christmas gift". Later on Truth Social Trump said the non-fungible tokens (NFTs) were "very much like a baseball card, but hopefully much more exciting".

The announcement has been criticised by social media users, with high-profile Republicans also speaking out.

"I can't do this anymore," Steve Bannon, a right-wing media commentator and former chief strategist for Trump, said about the NFTs on his podcast.

In an apparent jibe at Trump, US President Joe Biden said on Twitter that he had "some MAJOR ANNOUNCEMENTS the last couple of weeks too".

Others speculated that sale of NFTs was to help fund the legal battles that Trump is embroiled in.