Interdimensional Traveler T-Shirts

"Parallel Universe Parking Only"

"It's clear to me that you want to go far with this company."

In his younger days Spock was quite the comedian.

"Good Lord! Life on Mars...adorable life on Mars!"

An astronaut fishes in volcanoes on another planet.

"Abduction 101, when abducting eggs from a primitive planet always lower the temperature in the ship!"

"I can never understand these foreign crop circles."

"No, you're in the Milky Way galaxy."

How am I abducting?

An alien in his space ship sees a space sign that says 'You are here'

Super Strength, Impervious to Bullets And Explosions

"Take me to your mechanic."

'It's good to be here. We're having economic problems where we come from.'

'I'm going to Venus. He's going to Mars.'

'I say we invade and secure all those renewable resources.'

'You're about to see a drive for the ages!'

There is No Planet C

It's not a bad planet -- Their talk shows make it seem a lot worse than it is.

"I'm so sorry I let you talk me into letting you take your pet along on this trip!"

"Wow! You do have a triple A membership!"

An alien dog hangs its head out the flying saucer.

We've got to move closer to work. These 200 light year commutes are killing me.

'In the alternate universe I've come up with, everything would be exactly the same except cats would bark.'

'Three zillion, five hundred trillion and sixty seven billion light years from Zog and now you tell me you've forgot to cancel the milk!'

'Well, somebody on this stupid little planet ordered an extra-large with pepperoni and mushrooms!'

"Let's f**k up Mars!"

"Every abductee gets a souvenir mug."

"Hold on - I need to tell the credit card company I'm going on a trip."

"Possible exception to Prince William's proposed halt on space travel." proposed halt on space travel."

"What gear are we in, biscuit?"

Christmas on Other Planets.

A Space Walk

'Don't tell me you've got another moon rock in your shoe!'

'Take me to your feeder,'

'...it's some distance away - but there are lots of 'em and they're edible.'