You might not have known this, but many non-living objects are actually either male or female.

Here are some examples:

FREEZER BAGS: They are male, because they hold everything in, but you can see right through them.
PHOTOCOPIERS: These are female, because once turned off; it takes a while to warm them up again. They are an effective reproductive device if the right buttons are pushed, but can also wreak havoc if you push the wrong buttons.
TIRES: Tires are male, because they go bald easily and are often over inflated.
HOT AIR BALLOONS: Also, a male object, because to get them to go anywhere, you have to light a fire under their butt.
SPONGES: These are female, because they are soft, squeezable and retain water.
WEB PAGES: Female, because they are constantly being looked at and frequently being hit on.
TRAINS: Definitely male, because they always use the same old lines for picking up people.
EGG TIMERS: Egg timers are female because, over time, all the weight shifts to the bottom.
HAMMERS: Male, because in the last 5000 years, they've hardly changed at all, and are occasionally handy to have around.
THE REMOTE CONTROL: Female Ha! You probably thought it would be male, but consider this: It easily gives a man pleasure, he would be lost without it, and while he does not always know which buttons to push, he just keeps trying.