“Fireworks” shall mean and include any combustible or explosive composition, or any substance or combination of substances, or article prepared for the purpose of producing a visible or an audible effect by combustion, explosion, deflagration or detonation, and shall include blank cartridges, toy pistols, toy cannons, toy canes, or toy guns in which explosives are used, the type of balloons which require fire underneath to propel the same, firecrackers, torpedoes, skyrockets, Roman candles, Daygo bombs, sparklers, or other fireworks of like construction and any fireworks containing any explosive or flammable compound, or any tablets or other device containing any explosive substance, except that the term “fireworks” shall not include paper caps containing not in excess of an average of twenty-five hundredths of a grain of explosive content per cap, and toy pistols, toy canes, toy guns or other devices for use of such caps, the sale and use of which shall be permitted at all times.