Custom holidays traditions

I love custom holidays. I have a Wellness/ Be Kind To Yourself day with yoga, meditation, sauna, and massage. I have a Hot Times holiday to celebrate the beginning of summer. My sims sunbathe, BBQ, and streak. One of my sims graduated from Uni on this Holiday. It was funny to see all these graduating sims go streaking around before and after graduation.

Kiara Sims has lots of custom Holiday Traditions. IceMunMun also has some on Mod the Sims website, including some for pets.