http://www.carsondellosa.com/cd2/page4.htm
Carson-Dellosa is an education publisher and their clip art is the cutest. If you scroll down to the bottom of the above page there is a sweet penguin. He's on my "to-do someday" list!
http://www.carsondellosa.com/Cultures/en-US/clipart.htm
The second address sends you to the main clip art page with pics for different holidays, etc. Enjoy!