One of the favorites in his collection, "The Colossal Comeback," is 4 feet from tip-to-tip.
"I know what a horseshoe pit feels like, man, when this thing is coming back," said Broadbent.
Broadbent travels the country, sharing his high-flying passion with kids. Always in tow are some of the more than 15,000 boomerangs he has in his collection, which is the largest in the world. Because he sees a lot of kids and visits a lot of schools, they have to be fun and functional.
Broadbent says you can learn to throw and catch a boomerang in just seconds.
Here's what you need to know to throw like a pro.
1) It's not a Frisbee. Every boomerang is thrown vertically, straight up and down.
2) Throw some grass in the air to see which direction the wind is blowing. "You want the wind to hit your left cheek if you're right handed," added Broadbent.
3) Release at eye-level, with the painted-side facing you.
"Straight forward, just like throwing a football or a baseball," said Broadbent.