Fuses, Racks, Burn sticks etc. Fuses:This is what is lit to set off a firework. Fuse can come in varying speed. It can be used to string artillery shells or aerial repeaters together to create a continuous display by lighting only one initial fuse. Racks: This is what is used to hold multiple artillery shells that will be fused together. Burn stick : These are slow burning sticks used to light multiple fireworks over a period of time. Some burn sticks give off a scent that keeps mosquitos away.