The term "fireworks" shall mean and include any explosive composition, or any substance or combination of substances, or article prepared for the purpose of producing an audible effect by explosion, deflagration or deterioration, or for the purpose of producing visual effects, and shall include blank cartridges, toy cannons, in which explosives are used, the type of balloons which require fire underneath to propel the same, firecrackers, torpedoes, skyrockets, Roman candles, bombs, or other fireworks of like construction and any fireworks containing any explosive compound, or any tablets or device containing any explosive substance, or compound, or any tablets or other device containing any explosive substance, or containing combustible substances producing visual effects; provided, however, that the term "fireworks" shall not include toy pistols, toy canes, toy guns, rockets, or other devices in which paper caps containing twenty five hundredths (0.25) grains or less of explosive compound are used, providing they are so constructed that the hand cannot come in contact with the cap when in place for the explosion and toy pistol paper caps which contain less than twenty hundredths (0.20) grains of explosive mixture, the sale and use of which shall be permitted at all times. (1977 Code)