Darrell recently posted his method for making mini birdhouses on WC. I do essentially the same thing, but I hope he will post his method and comments here.
I made an aluminum jig that I think speeded up turning repeated batches of the body by one step, tho it limited the hollowed dimension to one size. Nothing more than a short 7/16 in. long X 5/8 in. dia. scored tenon on a #2MT taper for driving the drilled out body.
Slob that I am, I have made batches of mini birdhouses from solid light weight timbers such as cedar, even from fir stud cut offs. I'm watching out for the hollowing police! :)
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