I know there are a few of these already available, but I wanted to make my own.
If you want to tweak it, the design is on Onshape: https://cad.onshape.com/documents/bce4fc70c4cb3c49e136c95a/w/5d0153250ceeb807870928b3/e/56000e87f7bcb8236fc7fd9d
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