Have no idea what this could be, any help appreciated

[zogcopperhead]

Some kindof piece of iron, I thought it was some old cap off something. It has 16 what I'm calling "fingers" around it. I found it in the backyard on my first time out, probably 3 inches down. I know it can't be worth nothin but I was just curious if anyone might know something

 

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[george7737]

engine block freeze plug

 

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[cudamark]

I seem to remember a sprinkler having a piece like that on it. It was to spread the stream of water out in a cone fashion.

 

[zogcopperhead]

I seem to remember a sprinkler having a piece like that on it. It was to spread the stream of water out in a cone fashion.

That sounds like the most probable answer so far
Haha