But most never take off, crash or disappear. Economics correspondent Paul Solman reports. In the up-and-down world of cryptocurrency, so-called meme coins are perhaps the most bewildering.

Hawk Tuah girl Haliey Welch is facing tough questions about the instant collapse of the cryptocurrency based on the meme that made her famous. Hawk Tuah Girl's Meme Coin Crashes in Crypto Disaster ...