I went to a Diwali (or Deepavali, if you like) celebration yesterday, and did some henna. I just re-traced over a pattern that I had done last weekend for the t-punk meet-up, which was persian, lol... but the indian ladies seemed to love it. Here's a description of Diwali:
This is perhaps the most well-known of the Indian festivals... The celebration of the festival is invariably accompanied by the exchange of sweets and the explosion of fireworks. As with other Indian festivals, Diwali signifies many different things to people across the country. In north India, Diwali celebrates Rama's homecoming, that is his return to Ayodhya after the defeat of Ravana and his coronation as king; in Gujarat, the festival honors Lakshmi, the goddess of wealth; and in Bengal, it is associated with the goddess Kali. Everywhere, it signifies the renewal of life, and accordingly it is common to wear new clothes on the day of the festival; similarly, it heralds the approach of winter and the beginning of the sowing season.
I put colored sparkly goo on it just to make it that much more ever-so-Bollywood, LOL. (The glitter stuff is called Zardosi if anyone cares)
You can see some other pictures of the henna and one of the Diwali festival itself here.
I only took one pic inside the auditorium because I was pretty much the only white person in attendance, let alone as a henna artist, and it seemed intrusive for me to be snapping away with the camera when no one else was.