Guru peyarchi today, so Kamakshi had an abhishekam for Dakshinamurti and the navagrahas, so did Vedapuriswara, and Angalamman. Arun stayed at the Siva temple, Deepa went to the Kamakshi until the end of the abhishekam. Nataraja Periyavar was doing the Navagraha abhishekam, and Gurukkal for the beautiful Dakshinamurti there. Arun saw the deeparadhanai at Kamakshi. Don’t recall seeing any special or specific alankara for Guru.
Angalamman was only the deeparadhanai and puja, homam etc. over by the time I reached [Kalasa Avahanam, Ganapati Homam, Guru Moola mantram, and Guru Abhishekam – Angalamman’s usual puja sequence]. There was a queue of people waiting to give Sriram Gurukkal some coins, placed in water, prayers said, and the coin returned. I wonder if this was some sort of shanti parihara, in which the coin participates in the ritual and then becomes an auspicious object. Guru Peyarchi is routinely used as an occasion for shanti/parihara at temples that are not principally Guru temples. Perhaps Angalamman has some specific shanti pujas as part of its Guru Peyarchi observance. Need to ask. Some videos of the Angalamman puja are alongside
Meantime, Guru himself was all white and yellow, with the usual offerings associated with Guru: yellow flowers, turmeric, chickpeas/kondaikadalai, yellow cloth and flowers, ghee, honey.