Kermit the Frog's eyeballs were originally made of these light sports balls
[DOC] [TLE] New species of glass frog has transparent skin and Kermit's eyes ... [PAR] Apr 17, 2015 ... MailOnline US - news, sport, celebrity, science and health stories ... Scientists 
were surprised to stumble across the frog, given that a through ... which have this 
strange characteristic, by its long toes and black and white eyes ...