Google Goo was a product described as a stress toy.
Goo is not unlike plasticine except more brittle in its consistency and feel.
Remove Goo from its container and squeeze and mold it in the palm of the hand feels good, relieving stress.
Yes, Goo was a very real product
Google Goo store description
It's time to get hands-on with a fistful of Google Goo. This stretchy ball of red fun works overtime to decrease stress and stretch your creativity.
It doesn't stain and it's non-toxic -- and endlessly satisfying to shape and squeeze. Comes in a handy storage tin. Age 3 and over.
Goo was first sold in a round metal tin with a lid (as shown - top right), then it was sold in a rectangular plastic container (right) and renamed Silly Putty.
- Update (2018) Google Goo is no longer sold by Google in either format.
Google Goo For Sale
Google Goo Memorial
Google Goo Time Lapse
An 11 hour time lapse of Google Goo falling down. YouTube Video
Google Goo Images