Invention T-Shirts

'Mine does the exact same thing - but without the tassel.'

"Ralph is doing a preliminary study of re-inventing the wheel."

'It's a new design to save water.'

Neanderthal man's lack of curiosity doomed him to extinction.

"I invent things to complain about."

'All the good ideas have been already done.'

'Granted, it has some aesthetic appeal, but I can't see any practical application. And for that reason, I'm out.'

'Oh, no - that's just the prototype.'

"That's just great. I discover the cure for the common cold and all you can do is criticize."

'I've just had this really big idea.'

'The committee's decided to ban further research until it can be proven your 'wheel' poses no threat to the environment, society or public health.'

'The hard part will be writing the tutorial.'

"...you came up with a milk carton that nobody can open."

'I told you the idea of wheels on a cart was unworkable.'

"Don't quit now, we're halfway there!"

Though the R-331 was used exactly one time, it is still generally recognized as the worlds first alarm clock.

"However good father's 'beaver-o-matic' was..."

'When do you guys plan to invent a crash test dummy?'

'Call me when you invent the warranty.'

"Nope, what I had in mind was more of a sort of double helix."

A man having a light bulb screwed into his head.

Mad scientist holding bubbling flask in lab

'Any ideas?'(scientists in a lab).

Administering Dose of Medicine to a Boy

Caveman who has just invented the wheel is amazed to see a paper airplane demonstrating the principle of flight.

'I assume all this playing will lead to innovation.'

'Dude, look. I took a snowboard and cut it in half... I think I just invented a new sport!'

Inventor names new fabric after his sisters, Polly and Esther.

"Not without inventing a helmet, you don't!"

'It belonged to an elderly gatherer who only used it on Sundays!'

'Hold everything -- the Chief says all new inventions have to be biodegradable.'

"We cancelled the cold fusion project for a map that re-folds itself."

"Sorry, we're running a little behind."

'I'm waiting until someone develops a Weapon of Mess Destruction.'

"I won't share credit for our invention of a truth serum because I've always hated you and your homely family."