cheap 2020 cnc feet

I got myself one of these cheap cnc mills. Im not even finished assembeling it, but to me, this thing needs feed. Put a bare extruded aluminum frame on a table and let it mill some would? No sir, i need some feet with soft felt or rubber pads.

A hole in the center, if you like to screw it tight, but it seems that that isn't necessary, It holds tight on its own.

Ps: My cat buddy couldn't resist to show his feet too