I checked the date of the article; it's not April 1. Mexican physicists have made diamonds from tequila. One can only speculate how they came up with the idea of heating tequila to around 800 degrees celsius and turning the resultant carbon atoms into an extremely thin diamond film, but it might make a good comic routine. Uses for the diamond film include the manufacture of ultra-fine cutting instruments, and as an alternative to silicon in computer chips.
The scientists found that even the cheapest of tequila brands, averaging at $3 a bottle, are good enough to make diamonds.
The cost of an 800-degree oven might keep this from becoming a do-it-yourself project, however.