In the jewelry and bead trade, sterling silver tube beads (also called
heishi and liquid silver) are common. These are short sections of
silver tube with common dimensions of about 1-mm OD by 2- to 4-mm long
and they are cheap - like a penny apiece. Would they work for PCB
eyelets?
From the current Rio Grande Gems and Findings catalog:
Sterling Tube Beads
0.047"OD 0.029"ID 3/32" long, 2000 pieces/oz; $9.04 per 1/2oz pkg
0.047"OD 0.029"ID 5/32" long, 1200 pieces/oz; $10.01 per 1/2oz pkg
0.027"OD 0.019"ID 3/32" long, 6890 pieces/oz; $9.90 per 1/2oz pkg
Rio Grande is at www.riogrande.com but you need to have their paper
catalog to see their products. See also the liquid silver at
http://www.thebeadsdepot.com/index.asp?M=D&ID=61 The "liquid gold" is
made from gold fill tubes.
Most any medium-size or larger city should have a beading supply store
that stocks or could quickly get liquid silver.
Hope this helps
Larry