This is a small Cat's Eye Stone pendant FOB that looks to be gold filled. Just a different piece! It is in the shape of a "beer keg" with a small hole on one side! 3/4" x 1" drop.
Marked "Sterling" Rhinestone Child's Pin with "C" clasp! This is so dainty! Early 1900's or a little later. The measurement is 2 cm's in length and approximately 1/2 mm's in width. Nice little collectible!