These require a lot of work but are worth the effort! It's not an exhaustive list...these are the ones that get my juices flowing and have inspired me to create a CNC mill.

This had to be added..it's amazing!
698K 4,298
This is well crafted with a lot of detail.
183K 1,568
This is heavy duty!
651K 2,971
Two for the price of one.
294K 1,139
Essential for every CNC mill.
1.2M 1,179
The first one I've seen using wood for the axis.
490K 968
$20 isn't asking too much.
591K 1,933