This is a keychain with characters in oracle bone script, where the symbols represent "白(fair-skinned) 富(Rich) 美(Belle)", give it to your girlfriends they might be surprised.

甲骨文形式的白富美 as in a wealthy fair-skinned belle in oracle bone script

做了个甲骨文吊饰嘻嘻

Oracle bone script is the oldest attested form of written Chinese, dating to the late 2nd millennium BC. Inscriptions were made by carving characters into oracle bones, usually either the shoulder bones of oxen or the plastra of turtles. The writings themselves mainly record the results of official divinations carried out on behalf of the ruling Shang dynasty royal family. These divinations took the form of scapulimancy where the oracle bones were exposed to flames, creating patterns of cracks that were then subjected to interpretation. Both the prompt and interpretation were inscribed on the same piece of bone that had been used for the divination itself.