Okay, so I wasn't going to go to Goodwill this week but I went yesterday anyway!
This is what I bought:
The silver and gold pearl strings are each 5 yards for $0.59 each. There are 100 black beads in each package for $0.59 each. So for less than $4 I have 200 beads and 20 yards of 4mm pearl string. Not bad.
If I had alcohol inks I could color the pearl string just about any color I want for all sorts of projects but alas I do not own alcohol ink. Maybe I will try to use some of my husband's spray paint or lacquer.