Tack beads?

I am thinking of doing some custom tack here in the near future, only one problem though, I can't find the supplies! I am looking for those large metal & bone "beads" and silver pieces and cannot find them... anyone have any clue where to look? I have googled till I was sore and could not come up with any.


To give you an idea of what I am looking for...

I can't help you with the bone beads but someone was asking me about making large hole beads for halter tying..
These holes are 1/4 inch... I can make them in just about any color.

How much do you want for them, do you have any examples of the different colors?