Polka Dot Lampwork Beads - 12mm. Use them in your Christmas beading projects! Polka Dot Lampwork Beads are red or green with white spots, or white with green or red spots. Great for necklaces, bracelets, earrings and other beaded decorations. Glass. (24 pcs. per unit) 2mm hole. Each lampwork bead is handmade and will vary slightly.