I would allow machine prints, either digital or analog exposed, or inkjets.
Oh, yes, conventional 35mm slides sure, keep them if there is interest.
What to focus on is the impact of the image, and perhaps the desriptions of the processing manipulations. diffusion, cropping , unsharp mask, pattern masking, dodge, burn, selective area contrast control are all valid techniques that are common to both A and D platforms that yeild prints.
The other side to think about is D image capture, D generated A neg, analog traditional silver or alt process print, or D image capture to lambda output on traditional silver paper. Why count those paths to yield a prit for consideration out. Way Beyond Monochrome ed2 has a great work flow possibilities diagram in it to show all of the possible current permuations.