Hiya dude! Yeah, grab yourself a screw driver and big hammer and dismantle the lot. Seperate everything from steel (which is magnetic). Pull out motors and either sell as they are or break apart for copper. Strip all the wire you can. Hacksaw your scooters to separate aluminium. Take the battery out of the car, but don't (whatever you do) open it.
Most important is just to learn what each bit of everything is made of. If it's metal, pull it. Dump the rest responsibly.
Good luck bro!