YOBS made it a night of mischief misery across Huddersfield.
Police and firefighters said many incidents were malicious criminal damage and it was lucky no-one was seriously hurt or even killed.
Fireworks were shoved through several doors and it was "sheer good fortune" the people inside did not die.
At least 25 homes were attacked by yobs pelting them with everything from eggs to stones.
Dozens of cars, hedges and fences were also attacked by vandals.
Det Con Steve Shaw, of Huddersfield CID, said: "What went on last night was far beyond mischief.
"It was malicious criminal damage."
An airbomb was pushed through a letterbox at a house on Thorncliffe Street in Lindley at 11pm and set off.
The force of the explosion destroyed the letterbox and filled the house with smoke.
The two women inside the back to back house were left badly shocked.
Station Officer David Rawnsley said: "The door was the only exit and it was sheer good luck the firework did not set fire to papers behind it."
A rocket was pushed through a letterbox and set off on Ballroyd Road in Fartown at 8.20pm.
"If a child had been behind the door they could have been killed," said Det Con Shaw.
One young mother was so terrified when her home in Almondbury was attacked by yobs throwing eggs and smashing plant pots.
In the end she fled the area with her two-year-old daughter.
The 21-year-old said: "I rang the police six times, but they said it was not classed as an emergency and no-one came."
A garage packed with boxes of election leaflets was destroyed by fire on East Street in Golcar at 12.40am, a caravan was gutted by a blaze on Colders Lane in Meltham, and a firework was set alight and pushed through a house door on Helme Lane, Meltham.