Ridgid Track Saw Arbor Cover I designed because I couldn't be bothered to spend 10 dollars on one that was 3d printed.
Should work pretty well just make sure that you match up the smaller and bigger angled sides because it does matter. If it helps the slightly smaller knobs go on the right of the hole.
Feel free to post more optimized versions if you find a flaw.
The author marked this model as their own original creation.