From Bead and Button:
“Although most of these buttons are synthetic polymer — mainly polyester, nylon, and ABS plastic — they were also made of wood, metal, leather, and horn. Some have a base made from one material and a snap element of another. Embellishments and finishes may include rhinestones, fabric, flocking, cold enamel, transfers, glitter, and paint. Plastic snap-togethers are also great look-alikes: One can find examples imitating bone, horn, tortoise shell, wood, rhinestones, metal, glass, fabric, leather, ceramics, and even gemstones such as turquoise, alabaster, and agate.
Pictorial subjects run the gamut. Most common are those that appeal to children: animals, fruits, veggies, flowers, and objects such as roller skates, footballs, and sunglasses. An “adult snap-together” (so named by collector Wilda Gould) might feature a gold metalized plastic base with a velvet-like dome or pearlized cameo top. ”
 Snap Together Cameo |
 Snap Together Button Set |
