Who doesn't like a good old renovation? Cleaning up the kitchen, the back deck and discovering bits and pieces of history. But, how about finding more than 150 bowling balls?

David Olson, was the Michigan resident who got just that lucky, and found all these bowling balls in his backyard. All Olson was doing too, was demolishing some steps in his backyard.

"That was one of the bowling balls. I didn't think a whole lot of it. I was kind of assuming maybe there were just a couple in there just to fill in. 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," Olson told Yahoo. "I was actually a little happy about that because it's a little easier to roll bowling balls out of the way than to move the sand and figure out where to put all that," he added.

The first initial post that Olson made to Facebook, had uncovered just 50 balls. Later on in the day, Olson found an additional 120 balls. In total, he ended up finding 158 balls that night. In the days that followed, he found an additional two balls.

"There's definitely more ... but at this point in the area I need to work, I've dug down about 2 feet lower than when I found my last ball and I think it's pretty much cleared out in that section," he said.

Olson contacted Brunswick Bowling products, worried that the balls could possibly be toxic. But the company contacted him back, denying these claims, saying the balls were made in the 1950's and could safely be disposed of.

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Unfortunately, the balls were found in rather pour condition. There used to be a Brunswick plant in Muskegon Michigan. And an old employee of the plant reached out, saying that this is how they would get rid of some of the balls. They'd bury them with either sand or gravel.

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