  Rubber penguin from Oliver Sacks.  
This little rubber penguin was given to my daughter by Oliver Sacks to keep her entertained during a visit in 2003.  Here's a picture of them from his 70th birthday bash: 
  
It's not really an element sample, I just wanted a place to post that picture. 
Shockingly, I had this sample cataloged as a duck for years until reader Robert Anderson's eleven year old son pointed out the error.  Just goes to show you should never believe anything you read on the internet. 
Source: Oliver Sacks 
Contributor: Oliver Sacks 
Acquired: 8 July, 2003 
Text Updated: 21 November, 2007 
Price: Donated 
Size: 4" 
Composition: CHO
 |  
  |  
 |  
  |