The Firecracker was conceived as a celebration to Chinese New Year during NAHBS Portland. Show time that year happens to start on the second day of Chinese New Year and firecrackers are fired during this time of year to celebrate the beginning of a new year and to rid of negative Chi.
Firecrackers come originally from bamboos being heated and as the air inside the hollow segment expand, it finally explode and split the bamboo making a loud pop sound. It is used only for ceremonies.
The nature of firecracker parallels a fixed gear bicycle in the way of its explosiveness, simplicity and pure celebration to its event.
Here is a video of Renold brazing on a Paragon slider dropout with Fillet Pro Silver.