ZIPLOC BAGS - male, because they hold everything in, but you
can always see right through them.

SHOE - male, because it is usually unpolished, with its tongue
hanging out.

COPIER - female, because once turned off, it takes a while to
warm up.

TIRE - male, because it goes bald and often is over inflated.

HOT AIR BALLOON - male, because to get it to go anywhere you
have to light a fire under it and, of course, there's the hot air
part.

SPONGES - female, because they are soft and squeezable and
retain water.

SUBWAY - male, because it uses the same old lines to pick
people up.

HOURGLASS - female, because over time, the weight shifts to
the bottom.

HAMMER - male, because it hasn't evolved much over the last
5,000 years, but it's handy to have around.

REMOTE CONTROL - female .. Ha! You thought I'd say male.
But consider this: it gives men pleasure, he'd be lost
without it, and while he doesn't always know the right
buttons to push, he keeps trying.