Politicians and bureaucrats: kings of the knee-jerk reaction. And the first thing they think to do is remove the weapons from the law-abiding people because it's the easiest. 'Tis a pity they don't start with the criminals, first.

Guns first, then knives, then...
Baseball bats (sorry, USA)
Hockey sticks (sorry, Canada)
Pointed sticks (naturally pointed or formed)
Building lumber like 2x4s
Loose cement could be tossed into people's eyes
Glass, broken, very sharp
Rope for choking
Duct tape for suffocation
Lengths of metal like fireplace pokers, rebar and pipe
Spoons that could be turned into knives
Frozen bottles of water
Frozen dead cats
Feet - feet can do a lot of damage
Hands - very adaptable to crime: choking, punching, karate-chopping
And let's not forget possibly the greatest killer of all: automobiles.

Well, it looks like we've got a lot of laws to create, better get started!

Sue