The black oval beads are probably Czech, made from mechanically woven fiber tubes that are placed around a (wood?) core. The tube is like a round hollow braid made from many strands (of nylon?) woven together like basketry. Because of their structure, sections can be stretched over a base and used to cover it. Woven or basketry beads are a special category of fiber-decorated beads, that also includes tatted, knotless-netting, and similar embroidery techniques. I can see why Nishedha compares them to beads made with woven hair—the essence of mourning jewelry—but these are not that.

The other beads are Venetian lampwork trailed beads. And yes, you are correct—the beadmaker has made an attempt to create a bead that copies a millefiori bead; except here the technique is entirely via trailing. There are several examples of this happening among Venetian beads.

Jamey