When a Michigan man was tearing down his home's back landing, he discovered 160 bowlingballs beneath the stairs.
David Olson said he noticed a spherical object in the sand behind some cinder blocks while dismantling the stairs behind his Muskegon home on July 1.
"That was one of the bowling balls. I didn't think much of it. I was kind of assuming maybe there were just a couple in there to fill in," Olson told the Detroit Free Press. "The deeper I got into it, the more I realized it was just basically an entire gridwork of them making up the weight in there."
In the days that followed, Olson said he continued to dig and discovered 160 bowling balls.
The house was built in 1959, when the Brunswick Bowling Products factory in Muskegon was still in operation, producing bowling balls, pins, and other products before the company relocated its operation to Mexico, according to the homeowner.
Former Brunswick employees contacted Olson via social media, claiming it was common practice for workers to take unusable balls home to use as a substitute for gravel or sand in construction projects.
He claims the bowling balls are no longer usable, but he intends to use some of them.
"I plan to keep a lot of them, especially some of the nicer ones, to do some edging," he told MLive. "My wife is really crafty and wants to do some projects."
Olson stated that he donated eight of the balls to a local church for use in a bowling ball cannon at a pig roast, and that his stepfather intends to use some of the balls as legs for custom-built furniture.