If you have a good DSLR or mirrorless camera with high-quality glass (minimal lens distortion and abnormalities) you could try doing photogrammetry using VisualSFM and then reconstruct a mesh with CloudCompare to run your CAM on.
It’s a free workflow if you have the camera and computing hardware, and you can get some really great results, but it’s neither easy nor obvious, so get ready to dig in and learn a lot of new stuff to do it.
Here’s an example scan-reconstruction (with color):
This is of a sculpture I did a while ago that stands about 4" tall, so you can get small objects reasonably with the right lens.
Good luck