Prehistoric Times Explorer T-Shirts

Attack from the skies.

'The wheel was great, but what have you done for me lately?'

'Well, there's something you don't see every day'

"We're following Carrot Top."

Caveman's dog with head outside car window.

"Is this the best investment strategy you could come up with?"

Physician tending a mummy.

'It's an extinction notice.'

'Don't ask me why but he feels a great deal of pride in calling it his 'man-cave'.'

'The dreaded Anachronisaurus strikes again!'

"Admit it, we're lost."

Tourists in Egypt

"Look, Professor - a stegosaurus!"

Another Theory as to Why Dinosaurs became Extinct.

"I did my report on time travel, but my dog ate my homework in the future."

The Evolution Of Man.

'We need to have a shake-up!'

'When do they learn to stand upright?'

'Look, Dad! -- I taught Shep to walk on his hind legs!'

"I'm you from the future! Or the past. I've completely lost track of time."

'Your 'marriage' invention sounds good, but what if it leads to a concentration of power for the central government?'

"Life after death"

"How the hell is that supposed to feed us?"

The First Sentence Fragment: 'Hey, don't -'

Souvenirs.

A caveman rubs two sticks together and gets a computer.

'I'm tired of playing 'Rock, rock rock'.'

The invention of the wheel and the axel.

'We froze him until medical science knows how to cure spear wounds.'

"What does the time traveler do when he's hungry? Go back four seconds."

"All I'm saying is now is the time to develop the technology to deflect an asteroid."

Unfortunately, napkins hadn't been invented yet, so good ideas were quickly forgotten.

"Your wheel idea was a huge hit, so what have you got for me this time?"