Guesstimation Guru T-Shirts

Let your favorite guesstimation guru wear their passion with pride. Our witty t-shirts are perfect for showcasing their love of numbers, estimation, and clever problem-solving skills.

All Products Prints T-Shirts Mugs Pillows

Tartine

from $19.00

Carmel Buildings, Portman Square: A temperance meeting.

Carmel Buildings, Portman Square: A temperance meeting. mockup

Carmel Buildings, Portman Square: A temperance meeting.

from $19.00

Best Before 5th Pint.

from $19.00

Decorated officer - 'And these are for keeping my pants up.'

Decorated officer - 'And these are for keeping my pants up.' mockup

Decorated officer - 'And these are for keeping my pants up.'

from $19.00

"It's kind of sweet when they're all settled in like this."

"It's kind of sweet when they're all settled in like this." mockup

"It's kind of sweet when they're all settled in like this."

from $19.00

A mime and his pet parrot talk to one another.

A mime and his pet parrot talk to one another. mockup

A mime and his pet parrot talk to one another.

from $19.00

"I'm fascinated by body language." mockup

"I'm fascinated by body language."

from $19.00

Life on Earth - The original chat room. mockup

Life on Earth - The original chat room.

from $19.00

"welcome man cave."

from $19.00

"Whine and cheezed party."

from $19.00

Say it with flowers - available in any language.

Say it with flowers - available in any language. mockup

Say it with flowers - available in any language.

from $19.00

Quiz Night...

from $19.00

"If I had known how adult her place was I would have brought nicer beer."

"If I had known how adult her place was I would have brought nicer beer." mockup

"If I had known how adult her place was I would have brought nicer beer."

from $19.00

"I was a weirdo in this town before anyone even heard of Comic Con."

"I was a weirdo in this town before anyone even heard of Comic Con." mockup

"I was a weirdo in this town before anyone even heard of Comic Con."

from $19.00

Catastrophe Risk Insurance

from $19.00

Is it a book? A film? A TV show? How do you mime a podcast?

Is it a book? A film? A TV show? How do you mime a podcast? mockup

Is it a book? A film? A TV show? How do you mime a podcast?

from $19.00

'Bob likes to express himself through his art!'

'Bob likes to express himself through his art!' mockup

'Bob likes to express himself through his art!'

from $19.00

'I used to work for the Treasury Department, but there's no future in economic forecasts.'

'I used to work for the Treasury Department, but there's no future in economic forecasts.' mockup

'I used to work for the Treasury Department, but there's no future in economic forecasts.'

from $19.00

"Dave, the company has decided to let you back inside on one condition: While speaking, you must never, EVER do that ironic, 'in-quotes' twitchy thing with your fingers again. Take it or leave it."

"Dave, the company has decided to let you back inside on one condition: While speaking, you must never, EVER do that ironic, 'in-quotes' twitchy thing with your fingers again. Take it or leave it."

from $19.00