A straight router bit can cut out just about any shape you want. All if needs is a little guidance from you.
My Favorite Template Routing Tips and Tricks
CNC Routers Can Do All THAT?
Straight Talk on Straight Bits
1 Spiral Gears #1. - 1 Spiral Gear #2. We have had success by using compressed air to blow sawdust away. Hole Pattern #1: Porter Cable 450 and Dewalt
Spiral Art Template Set Acrylic Router Template
stencil-router-v2 examples - CodeSandbox
From cutting board to template cutting
Picking Out a Router
Maintaining Router Bits
The Scoring Method - Router templates never been more simple to
falcor-router examples - CodeSandbox
Make jigs for template routing
Thwart router-bit tear-out