The tourism board in Mexico joined forces with an advertising company in Chicago to develop a cloud that rains tequila.
This scientific marvel, which uses humidifiers to vibrate tequila at an ultrasonic frequencies to form a mist, was developed as part of an effort to convince German tourists to escape the rain of their home country and travel to sunny Mexico.
Visitors to this tequila cloud could actually hold a shot glass underneath the cloud and drink. (IFL Science)