Made In U.S.A Style # 3100 Size 0.5" x 0.5" Be Mine Stud Earrings There's always a pot of gold at the end of a rainbow! Earrings come as shown. Laser-cut wood that is extremely lightweight. Earrings are made from sustainably sourced birch wood. Displayed on sturdy earring cards we make out of 90% recycled material. Earstud is Silver Plated Brass, hypoallergenic and applied with a non-toxic water-based glue. Clear rubber earring backs included. The story of conversation hearts begins in 1847, when a Boston pharmacist named Oliver Chase invented a machine that would make it easier to produce lozenges. At the time, apothecary lozenges (basically medicine mixed with sugar paste) were in high demand as a popular remedy for sore throats and other ailments.