Non-fungible tokens, or NFTs, are exploding in popularity these days. People are paying big money for these unique collectible cryptocurrency assets. One NFT by the digital artist known as Beeple sold for a jaw-dropping $69 million in early 2021, while many others have fetched multimillion-dollar sales prices. The potential for big money is leading more people to create NFTs in the hope of cashing in on the current craze. Here's a step-by-step guide on how to make (i.e., mint) and sell a...