Reinheim "Princess" Necklace 

    Reinheim (Saarland), Germany     The largest bead (3.8 cm in diameter) is a dark blue ground containing mavered yellow and white opaque spirals, as well as small opaque yellow, raised dots that surround the perforation.  The opaque spirals twirl around the circumference of small ground protrusions that extend from the body of the bead.  These could perhaps be called vestigial horns.1
    The other two beads on this same necklace are commonly known as compound eyed beads.  They consist of six small blue 'eyes' placed around a central blue eye of the same size.  These are set within an orange or mustard colored roundel.
    This beaded necklace was found in a tumulus located across the river Blies from the German town of Reinheim, located on the German-French border.  Due to the nature of artifacts found at the site (the skeleton was completely destroyed by the acidic soil, the tumulus is thought to be that of a Princess.  This is indicated by the prescence of a bronze mirror and the absence of weaponry.2 
    Given the characteristic Celtic spirals as well as the small compound eyes set within the roundels, this necklace was most likely used as a talisman that served to ward off evil happenings.  Beads similar to the larger "horned" bead have been found near Manching and Waldfischbach.  The Manching bead was thought to be attached to the sword as a talisman.  In a custom dating back to the Samartians, Joachim Werner suggests that this type of bead was used as a loop with which to draw a sword closely to its scabbard.3
    Both types of beads are fairly common on the European continent, although other historians have ascribed similar "horned" beads to a much later date of 150 BCE.1 

1.  Guido pgs.  54, 61
2.
3.  Werner pgs. 26-37