Recycled Paper Beads

Hello...

I am interested in making beads out of recycled paper. I am clear
on the process up to the polishing.
For Information..... The simplified process is :

Boil recycled paper, drain, add glue, form beads, let dry, polish, use
for crafts.

I guess my question is.... what would be the quickest, easiest way to
polish these beads?

Could I use a rock tumbler minus the water?

How about a dremel with a polishing wheel?

I'm open to your suggestions.... There will be an 11 yr. old involved
so the simpler, the better.

Thanks....