You can replace it with a new plank square or whatever your floors wood is made out of and the shape. Get a knife designed for knife throwing.
Instead use a file axe or anything else that will remove chips.

. Throw a knife by tossing it downward like youre throwing a ball. Lift the knife up slowly behind your ear and focus on the spot you want to throw the knife. Yes irons can possibly create fire hazards.
Although a file is less efficient it is less dangerous. Hold the handle by tucking it in between your thumb and index finger.
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