Prehistoric Pranksters T-Shirts

'Your father's a genius kids. First he discovered fire and now marshmallows.'

'...Or, if you're on a budget, there's always the La Brea tar pits.'

"Look - I've just invented the spade!..."

"And as you can see, the spare log has never been used."

What really happened to the dinosaurs: 'Hey, I got it let's build a nuclear plant on a fault line.'

'This is great. I still have a signal.'

'Not only the first wheel, the first road accident as well!'

'I couldn't find any mastodons, and besides, this is a big darn rabbit!'

'Don't you remember what I told you? -- the bigger they are, the harder they fall!'

"I think the lines down!"

Free range dinosaur eggs

"The door stop is complete! Our next step is to invent the door!"

And so it began...

Early rodeo - for some reason, mammoth busting never caught on.

'Hey, Fred -- want to see a stupid pet trick?'

'What a stupid game. Who's going to want to play THAT?'

'Wait! -- Why don't we just have a BEER bash?'

"We should play with this for a while before the women become cautious and sensible."

'You bunch of gatherers call that hunting? Get back out there and this time try the pointy end first!'

Early Cartoonists.

'This new invention is called a 'bed' -- lie on it and I'll tie you down!'

'These pillow fights are killing me.'

Asteroids are a hoax. I know, but could you just let it go without arguing this time?

Museum of Natural History. Blumenkraft's theory is that the little arms were for flossing.

All right

Og falls asleep at the wheel for the final time.

'Hurry, wipe it off before Dad comes home!'

The first car accident.

'Some of those youngsters have come up with a terrific new idea - feathers.'

Early photobombing

Retirement homes' 'pill fight'.

"See, Og If mammoth foot ticklish, could me do this"

"Admit it, we're lost."

'Wow, Jimmy, that's pretty good!'

'You know what they say...live fast, die young and leave a great fossil.'