These three symbols appear in Mas Sajady and Fei Zhou's sex cult marketing. They resemble pedophile symbols.
Below is an FBI Document about pedophile symbols.
According to the document, "[P]edophiles are using various types of identification or logos or symbols to recognize each other and distinguish their sexual preferences."
The document also says, "Pedophilia symbols on jewelry, coins, Web sites and other effects are indicative of advertisement methods used by child sexual predators to promote their cause.... Identical or similar jewelry and symbols as described in this intelligence bulletin should raise suspicion of possible pedophilia activity when found during searches. Investigators should also be attentive to pedophilia symbols advertised on Web sites."
Thanks to Julian Assange's fearless choices, you can view the full document on Wikileaks.