I saw a post about pens and decided to see about what the smallest diameter
I felt safe with could be carved. I got this down to a 1/2"

Click image for larger version.  Name: 2.JPG  Views: 73  Size: 661.8 KB  ID: 63267Click image for larger version.  Name: 1.JPG  Views: 89  Size: 606.1 KB  ID: 63268