Firefighters found this onion bomb hidden in bushes in Salford near where the boys were injured.
They've confiscated it and are warning of the dangers of fireworks.
Onion bombs aren't meant to be available to the public.
More top news
As the deadline looms over whether or not fracking will to begin in the North West, Granada Reports speaks to 3 MPs divided on the issue.
A fundraiser from Liverpool got the shock of her life when she came face to face with her hero.
Showers - driven across the UK by very strong winds & very cold air - will produce snow during Wednesday and lasting into Thursday