Fireworks are explosive pyrotechnic devices. Fireworks are used for cultural and religious, even artistic purposes. The most common use of a firework is a fireworks display. Fireworks competitions are regularly held at a number of places. Fireworks take many forms to produce noise, light, smoke and floating materials. Fireworks are designed as such to burn with flames and sparks of many colors, such as red, orange, yellow, green, blue, purple and silver. Fireworks are common in wedding celebrations. Fireworks have been banned in some places following reports of an increase in the number of causalities.