yes
donkey
For me i would use a stick like barbecue stick if i am making a bead craft project to make my beads arranged
they use mammoth skin
There is no way to tell without knowing how big the beads are.
silk in an type of material that you use to make cloths
Mostly, the Navajo used deer skin to make skirts, vests, dresses, and other materials to make moccasins.
depends on how big those beads are and how you want to put them together If you want to use just those beads to make up a necklace then maybe 2-3 but again its all depending on the size of the beads. If you put seedbeads in between then you can make them stretch and make 10 or so necklaces.. Can you give more info on the size in mm of the beads.
23
You can use wirework or some kind of clay(to make a cuff bracelet).
The tools that the Navajo used were wooden rakes and hoes for farming and spindles and looms for weaving. To bore holes into turquoise and other beads, they would use pump drills.
Pony Beads
They used beads of course and also sometimes looms.