What is a bead?
A bead is a small decorative item that has a hole through it for stringing with the purpose of adorning ones self with it. So you can make a bead out of just about anything that is small enough to wear.
Something that had a loop added to it for stringing is no longer a bead, it is a pendant, which is something entirely different.
On this site and our sister site Beaded Patterns we are working with Seed Beads and Dangle Beads that are mostly under 10mm.