Wooden beads $4 at Jo-Anns
Paint (if you want!)
So basically, you can paint the balls any color if you'd like - I did 2 in white acrylic and left the others the natural wood color, but I make make another one that is all coral or something! Then tie knots in your string to hold the beads in place and then you are done!
I also, turned an old heart shaped button button to one end of the string and then tied a small hole on the other end so that it can clasp together, but if you like it long, you can probably just tie them together and be done! What do you think? If you try this at home, I'd love to see photos or a link to your post!