Foy Thong, also known as "golden silk threads" takes a lot of practice to make using a brass wok and a fine point cone (see: making foy thong), and every Thai wedding must have foy thong. Made of egg yolks and sugar syrup. The threads are long, and they symbolize everlasting love between the bride and groom--long like the foy thong. When it's made for a wedding party, the person preparing it should try to get the longest possible strands.