I just added the ☿ Mercury Kamea to the sigil generator. It is a 8×8 planetary kamea which can be used in creating magic squares and sigils.
Mercury Kamea in Astrology
Mercury represents the principles of communication, mentality, thinking patterns, rationality and reasoning, and adaptability and variability. Mercury governs schooling and education, the immediate environment of neighbors, siblings and cousins, transport over short distances, messages and forms of communication such as post, email and telephone, newspapers, journalism and writing, information gathering skills and physical dexterity.