How Can Momentum and Simple Machines Crush a Juice Box?

[begginner]

Homework Statement

I have to crush a juice box using minimum force but plenty of distance and i must use three different types of items from gears to levers and anywhere between.
for this i decided to use momentum to crush it. gravity must not be intentionally used.
Mechanical advantage should be as high as possible and there can be no electricity or thing of the sort.
I have wood and rope and heavy items and i am able to cut the wood to form gears but not exact teeth.

Homework Equations

How would i do this? ( I'm thinking gears and spinning an item attached to a rope)
How long would it take?
What else would i need?
How big?
How would i figure out the mechanical advantage?

The Attempt at a Solution

Gears and string with heavy object is what I am thinking.

 

[Basic_Physics]

Elastics, springs, heavy flywheel/rotating object? You need some form of energy source, something that can do work.

 

[begginner]

That would be me i am supposed to move something constantly.

 

[Basic_Physics]

You could try constructing a nutcracker to squash the box.