Two recent examples (the first is listed as antique) currently for sale on eBay and by a bead seller:

http://www.ebay.com/itm/1-Vintage-Purple-Millefiori-Chinese-Peking-Glass-Trade-BEADs-06-/171672612520?pt=LH_DefaultDomain_0&hash=item27f87c2ea8

http://www.earthlyadornments.com/chinese-cobalt-blue-peking-glass-bead-with-millefiore-eye-b11-bl-2113.html