Diwali is a beautiful festival of lights celebrated by Hindus all over the world. You can call it the Hindu's Christmas. There is cleaning of the house, decoration, giving gifts, and lighting the house with diyas.
Diyas are small oil candles usually made of clay. They are lit with ghee (clarified butter) or oil with a handrolled cotton wick. With modern times and people being more cautious of fire hazards, you can find several in wax like candles too. I make these unique diyas or tealight candle holders which have Indian motif stamps on them. When lit up they look just beautiful. The light hits the designs in just the right angles creating beautiful shadows. Do check them out in my etsy shop. http://creativewithclay.etsy.com/