Over the past two weeks, the sports world has gotten acquainted with a staple in other industries: sex toys.

Five separate incidents have occurred during WNBA games, where a green neon sex toy was thrown – with three landing on the court during live game action. Two people have been arrested, including an 18-year-old who threw the object during the Phoenix Mercury's game against the Connecticut Sun on Tuesday. The sex toy allegedly hit a man, who was watching the game with his 9-year-old niece.

The same night, during the Indiana Fever-Los Angeles Sparks game at Crypto.com Arena in Los Angeles, a sex toy landed on the court in the lane near Fever forward Sophie Cunningham, who earlier in the week went on social media to plead with fans not to throw things on the floor and posted another reaction after the game. Another sex toy was thrown at a New York Liberty game at Barclays Center.

The WNBA isn't the first sports league that has had to deal with sex toys being thrown on the field of play.

Here are some other unfortunate instances where that has happened: