This was made on a CNC. The first edition had a hole that was too large. You will need the following if you plan to make this.

1/8" ball end mill or 3-4mm endmill
1/16" twist drill or 1.5-1.6mm drill bit

Wood that is at minimum 100mm x 100mm x 25mm or 4" x 4" x 1"
Use whatever print settings you desire, if you print it.

DO NOT use a 1/8 endmill to make the hole. that's too big, and it will cause you a massive headache. The proper sized hole had to be drilled out afterwords, to my dismay.

Used tinkercad to throw together a quick sketch of this. Then it was put into Fusion to make quick work of finalizing the design and