These days, it's impossible to avoid seeing gender reveal photos on social media that include bright hues of pink and blue.
Recent years, however, have proved that these extravagant festivities are risky business.
leading to things like unintentional wildfires, aircraft crashes, and even serious environmental crimes.
Consider the gender-reveal bash that was held this week in Mato Grosso, a state in central Brazil.
Sunday's outdoor celebration followed the pattern set by similar events the previous day by using pink and blue balloons.
A big stork, and powder cannons to launch colourful plumes into the air.