On top of a red base I have added fine silver and encased it in clear glass...super heating the bead until small galaxies form. The hole diameter is 5mm and will fit most charm bead bracelets. The total size of the bead is about 3/8" wide by 1/2" diameter. You may find little bits of silver peeking out. They will be rough, but this is natural :)
Come check out my prices and other photos of this piece here:
http://www.etsy.com/listing/78456818/copperrein-sra-lincoln-bhb-charm-bead?ga_search_query=lincoln&ga_search_type=user_shop_ttt_id_5930500