Found this heavy, spiked metal disc in the back of a junk drawer. Sharp as needles. No idea what it’s used for?

repurposed as a unique decorative item or conversation piece in your home, offering a touch of history and artistry.
11. Other Spiky Lookalikes—and How to Tell Them From a Flower Frog
While the kenzan is distinctive, there are other spiked objects that might be mistaken for it. Some kitchen tools or gardening implements feature spikes for entirely different purposes, such as meat tenderizers or soil aerators. These items are generally larger, with different spike configurations.
To distinguish a kenzan, look for the densely packed, uniform spikes set into a circular