Every time I did a small segmentation project which contained small pieces, I would wind up with no finger nails left from sanding the small pieces with the Dremel. They would also sometimes catch on the sanding drum and go flying across the room, leaving me to searching for them on my hands and knees for who knows how long.
Just recently, my partner started doing segmentations. He took a scrap piece of wood and some double sided tape and stuck the small piece to the little block of wood. He was then able to use the Dremel to his hearts (and finger's) content. I was sitting here thinking to myself - "why didn't I think of that"?
I have recent segmentation projects with small pieces and tried this out and it works perfectly. You need to change the tape after each piece you sand, naturally because the dust, but it is easier than grinding your fingers down and looking for small pieces.
Sheila